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Choose the best answer
1. I ___ a lot of time travelling since I ___ this new job.
A. spend/get B.have spent/get C. spent/got D. have spent/got
2. When I ___ at school, we all ___ Latin.
A. was/study B. am/study C. was/studies D. had been/studied
3. After he ___ breakfast, he ___ down to write some letters.
A. has /sat B. has had/sits C. had had/sits D. had had/sat
4. When we arrived at the stadium last Sunday, the match ___ already ___.
A. had/started B. started C. has/started D. had/started
5. They ___ a house by June next year.
A. will built B. are building C. have built D. will have built
6. The film ___ by 2.00 tomorrow.
A. ends B. will end C. is ending D. will have ended
7. Tom ___ to Hanoi before.
A. is never B. was never C. have never been D. has never been
8. When we came to the stadium, the match ___.
A. already begins B. already began C. had already begun D. have already begun
9. This is the first time I ___ such a beautiful girl.
A. ever saw B. had even seen C. have never seen D.have ever seen(mk nghi cau nay nen co have)
10. He ___ in this school before he ___ for England.
A. taught/had left B. had taught/left C. taught/has left D. has taught/left
11. Fifty minutes ___ the maximum length of time allotted for the exam .
A. are B. is C were D. be
12. One of my neighbours____ curious about other people's private life.
A. being B. were C. is D. been
13. Seven months ____ a long time for me to wait.
A. being B. were C.are D. is
14. A lot of restaurants ____ open at night.
A.are B.is C.was D.be
I. Tense
- I’d like to borrow this book . _________ it yet ?
a. Did you read b. Had you read c. Have you read d. Do you read
2. We ____ in this town for a long time. We ______ here sixteen years ago.
a. had been / come b. have been / came c. were / came d. are / came
3. No breakfast for Mark, thanks . He _____ breakfast.
a. hasn’t eaten b. didn’t eat c. isn’t eating d. doesn’t eat
4. The news came as no surprise to me. I ____ for sometime that the factory was likely to close.
a. knew b. had known c. have known d. know.
5. Glenda _____ extremely hard when she was a student.
a. worked b. has worked c. was working d. had been worked
6. The world war II ___ in 1939 and _____ in 1945.
a. begins / ends b. had begun/ended c. has begun / had ended d. began / ended
7. I’ll see him when he ____ here tomorrow .
a. comes b. will come c. has come d. had come
8. I ____ at the check out when I _____ a strange looking man .
a. waited / noticed b. was waiting / noticed c. waited / was noticing d. was waiting / had noticed
9. Harry works all the time . He _____
a. never relaxes b. relaxes never c. often relaxes d. relaxes sometimes
10. The house was very quiet when I got home. Everybody ____ to bed
a. have gone b. went c. had gone d. goes
II; Choose the best answer :
1. It…………………quite often in Britain during the winter.
A. is snowing B. snows C. snowed D. was snowing
2. Every twelve months, the Earth………………the Sun.
A. circles B. circled C. has circled D. is circling
3. Right now, Jim……………..the newspaper and Kathy……………dinner. Last night at this time, they………….the same thing.
A. is reading / is making / were doing B. reads / makes / had doneC. has read / has made / are doing D. will read / will make / did
4. My father usually………………beer after meals but now he…………………tea.
A. drank / was drinking B. drinks / is drinking C. drinks / drinks D. has drunk / drinks
5. Wars………….the most terrible. At the moment, wars……………….in some places in the world.
A. are / happened B. have been / have been happening C. were / are happening D. are / are happening
6. Since his bicycle……………..stolen last week, he………………to school by bus.
A. has been ghoes B. had been / was going C. was / has gone D. was / went
7. You can’t see Tom because he…………….
A. is working B. was working C. has been working D. had been working
8. I have never played table tennis before. This is the first time I ........................ to play.
A. try B. tried C. have tried D. am trying
9. Hurry up! Our train ................ at 7 o’clock. We have just a little minutes.
A. leaves B. is leaving C. will be leaving D. is going to leave
10. The child is still ill but he ......................... better gradually.
A. gets B. is getting C. has gotten D. got
11. Don’t bother her. She ...................... her violin lesson; she always ............. it in the morning.
A. takes / is taking B. takes / takes C. is taking / is taking D. is taking / takes
12. The existence of many stars in the sky ................... us to suspect that there may be life on another planet.A. lead B. leads C. led . have led
13. The population of the world ................... at a tremendous rate and .................. out of control.
A. has increased / are soon going to B. is increased / soon will be
C. is increasing / soon will be D. has been increasing / are soon
14. Medical researchers .......................... for ways to control, prevent and cure cancers.
A. look B. are looking C. have looked D. have been looking
15. I’ll come to see you before I .................. for the United States.
A. leave B. will leave C. have left D. am leaving
Exercise 1: MULTIPLE CHOICE
Choose the best answer :
1. My friend, Mary, arrived after I………………..for her about half an hour.
A. was waiting B. had been waiting C. have been waiting D. have waited
2. The accident………………when we were on the way to Vung Tau.
A. occur B. occuring C. occurred D. had occurred
3 . It was midnight. Outside it………………very hard.
A. rains B. is raining C. rained D. was raining
4. When he……………… at the station, his train already………………..
A. arrived / left B. arrived / had left C. had arrived / left D. arrives / leaves
5 . You……………….your new hat when I ………………….you yesterday.A. were wearing / had met B. wore / had met
C. wore / was meeting D. were wearing / met
6. As I………………the glass, it suddenly ………………..into two pieces.
A. cut / broke B. was cutting / broke
C. cut / was breaking D. was cutting / had broken
7. When I………….to the party, Sally and Doug………….., John……………….drinks.
A. was coming / had danced / made
B. had come / danced / made
C. came / were dancing / was making
D. have come / are dancing / is making
8 When I…………….there, dinner………………, so I had a drink first.
A. get / is preparing B. get / has been prepared
C. got / had been prepared D. got / was being prepared
9. He……………….for her for nearly one hour last night before she………………
A. was waiting / came B. had been waiting / came
C. has waited / comes D. waited / will come
10. Andrew………………..the test before so he……………………..it very easy.
A. did / had found B. had done / found C. was doing / found D. did / was finding
11. While her brother was in the army, Sarah .................... to him twice a week.
A. was writing B. wrote C. has written D. had written
12. When I last........... him, he........... in London
A. saw-has been living B. see-in living
C. saw- was living D. have seen- lived
13. I was sad when I sold my car. I ..................... it for a very long time.
A. am running B. were running
C. have been running D. had been running
14. By next month, Laura ...................... for the company for twenty years.
A. will be working B. will work
C. has been working D. will have been working
15. When I last saw John, he .......................... and was out of breath.
A. was running B. ran C. has run D. had been running
Exercise 2: MULTIPLE CHOICE
1. Mary ______ in London for 15 years.
A. is living B. was living C. has lived D. lives
2. Tim ______ in three movies already. I think he’ll be a star some day.
A. has appeared B. was appearing C. had appeared D. is appearing
3: Ann lives in London. She ______ there for ten years.
A. is living B. had been living C. was living D. has been living
4: She hasn’t written to John ______ she left school.
A. since B. after C. when D. before
5. He ……………… to New York three times this year.
A. had been B. was C. is D. has been
6. The last time I saw him was in June, 2004.
A. I saw him since June, 2004.
B. I have seen him since June, 2004.
C. I have not seen him since June, 2004.
D. I didn't see him since June, 2004.
7. _________ any letters from him lately?
A. Are you receiving B. Do you receive C. Have you received D. Had you received
8. We _____ for him for 10 minutes.
A. will have waited B. wait C. have been waiting D. waited
9. We _____ him for months now.
A. don't see B. haven't seen C. didn't see D. won't see
10. I haven't eaten this kind of food before.
A. I haven't eaten this kind of food already.
B. This is the first kind of food I have eaten.
C. This is the first time I've eaten this kind of food.
D. Even before I have not eaten this kind of food.
3. The secrtary ___ the report by 10:00 yesterday
a.hasn't finished b.hadn't finished c. didn't finished d. would finish
4. Jane's eyes are red. She __
a.cried b. has cried c. has been crying d. had cried
5. This room is dirty. Someone _____ in here
a. smoked b. has smoked c. had been smoking d. has been smoking
6. Arsenal _____ next Monday
a, wins b. will win c.would win d. is winning
7. It _____ rain tomorow
a. rains b. will rain c. is going to rain d. is raining
8. I'll come and see you before I _____ for America
a. leave b. will leave c. have left d. shall leave
9. The little girl asked what ____ to her fiend.
a. has happened b.happend c. had happend d. would have been happend
10. John ____ a book when i saw him
a. is reading b. read c. was reading d. reading
11. He said he ___return
a. will b. would c. can d.would be
12. Jack _____ he door
a. has just opened b. open c. will have opened d.opening
13.I have been waiting for you ____
a. since early morning b. since 9a.m c.for two hours d.all the correct
14. My sister __ for you since yessterday
a. is looking b. was looking c. has been looking d. looked
15.Jack )____ the door.
a. has just painted b.paint c. will have paited d. painting
16. The train ____ half an hour ago
a. has been leaving b. left c. has left d. had left
17. we __ Doris since last Sunday
a. don't see b. haven't seen c. didn't see d. hadn't seen
18.when i last saw him, he ___ in London
a. has lived b. is living c. was living d. had been living
19. she is tired now. She ___ for a long time
a. has been learning b.has learned c. learns d.learned
20.they will have gone home before you _____ to meet them
a. came b. come c.will come d. are coming
EX 2:
1. hurry up or the train __ before you catch it
a. will leave b. leaves c. will have left d.has left
2. now my sister ____a bicycle of her own
a. is having b. are having c. has d. had
3.A football team ___ chieflyof 12 players
a. composed b. composes c.comprised d. comprises
4. This is the first time I ___ here
a. am b.have been c.was d.be
5last week , my professor promised that he _____ today
a. would come b. will come c. comes d.coming
6. My girls friend arrived after I ____ for her about half an hour
a,was waiting b.had been waiting c.has been waiting d. have waited
7.did she say the _____ him tomorrow ?
a.has visited b. will visit c. would visit d. iss
8. ________ to rain before you woke up this morning ?
a. did it begin b. has never begun c.had it begun d. would it begun
9.my daughter saw an elephent this morning but she _ one before
a. had never seen b. has never seen c.never seen d. never had seen
10. I ___ in Da Nang before i moved to dong nai
a. have been living b. have lived c. had lived d. had been living
11. there are many ways ____ to Rome
a. is leading b. are leading c. leading d.led
12.when we got home, dinner ____ so we had a drink first
a. was preparing b. was being prepard c. was prepared d. had been prepared
13. she was tired. she ___ for a long time
a. has been learning b. had been learning c. learned d. was learning
14. he __ in space for 10 days by tomorrow
a. will travel b. will be travelling c. is not visiting d. does not visit
15. he said he would visit me, but he ___ me yet
a. has not visited b. had not visited c. is not visiting d. does not visit
16. The weather ___ fine so far this week
a. is b. has been c. was d. had been
17 Before the prime Minister leaves New Your he ___ several talks
a. will have had b. would have c. will be having d. has
18. we had just got out of car when it ___ to set fire
a. has begun b. had begun c. was beginning d. has
19.As soon as he __ a certificate in English, he will apply for a jop
a. would get b.got c. gets d.will get
20.he was told that he _ knocked out in the first round
a. had been b.was c. has been d. was being
1. C. usually plays
2. A. burnt
3. C. has been
4. C. haven’t had
5. B. will
6. B. has left
7.C. has made
8. B. Have you seen
9. C. played
10. A. has played
11. C. am working
12. C. was sleeping
13. B. has been
14. D. have driven
15. B. are going to
16. D. I’ve been
17. D. do you get
18. C. saw
19. D. since
20. B. for
21. B. telephoned
22. C. feels
23. D. have returned
24. A. had been won
25. D. discovered
26. B. depends
27. C. I’m working
28. B. we’ll be flying
29. B. are going to
30. B. was dancing
31. A. had done
32. B. have you been
33. A. is
34. B. didn’t it
35. C. were they
36. D. shall we
37. D. finished
38 . B. got
39. B. finished
40. C. since
41. B. lived
42. .A. is having
43 .A. am working
44 .D. had you been/ had left
45. A. I was watching TV
46. D. is being repaired
47. B. was walking
48. A. doesn’t usually go
49. D. usually cleans
50. D. has been improved
Chúc bạn học tốt!
1. John ............................... tennis once or twice a week.
A. is playing usually B. is usually playing
C. usually plays D. plays usually
2. Tom ......................... his hand when he was cooking dinner.
A. burnt B. was burning C. has burnt D. had burnt
3. Jim is away on holiday. He ........................ to Spain.
A. is gone B. have been C. has been D. was
4. Everything is going well. We ....................... any problems so far.
A. didn’t have B. don’t have C. haven’t had D. hadn’t had
5. I think the weather ............................ be nice later.
A. shall B. will C. is going to D. can
6. Jane .................................... just a few minutes ago.
A. left B. has left C. leaves D. had left
7. Timson ...................... 13 films and I think her latest is the best.
A. made B. had made C. has made D. was making
8. ................................. Robert lately ?
A. Did you see B. Have you seen C. Do you see D. Are you seeing
9. When I was a child, I ............................... the violin.
A. was playing B. am playing C. played D. play
10. He ......................... for the national team in 65 matches so far.
A. has played B. has been played C. played D. is playing
11. I’m busy at the moment. I .................................. on the computer.
A. work B. worke C. am working D. working
12. When I looked round the door, the baby ............................. quietly.
A. is sleeping B. slept C. was sleeping D. were sleeping
13. Robert ....................... ill for three weeks. He is still in hospital.
A. had been B. has been C. is D. was
14. I’m very tired. I ..................... over four hundred miles today.
A. drive B. am driving C. have drived D. have driven
15. Our friends ............................... meet us at the airport tonight.
A. are B. are going to C. go to D. will be to
16. This isn’t my first time to visit London ........................... here before.
A. I’m B. I’d been C. I was D. I’ve been
17. What time ............................. to work this morning ?
A. did you get B. are you getting C. have you got D. do you get
18. When I ..................... him, the man was running away.
A. see B. was seeing C. saw D. had seen
19. I haven’t seen Kate ............................. Christmas.
A. for B. never C. ever D. since
20. He’s worked for this company ......................... many years.
A. since B. for C. in D. at
21.As soon as Martina saw the fire, she _______ the fire department
A. was telephoning B. telephoned
C. had telephoned D. has telephoned
22.Every time Parkas sees a movie made in India, he _______homesick
A. will have left B. felt C. feels D. is feeling
23.Since I left Venezuela six years ago, I _______to visit friends and family several times
A. return B. will have returned
C. am returning D. have returned
24.After the race _______, the celebration began
A. had been won B. is won C. will be won D. has been won
25.While he was washing his car, Mr. Brown _______a small dint in the rear fender.
A. has discovered B. was discovering C. is discovering D. discovered
26.The earth _______ on the sun for its heat and light
A. is depended B. depends C. is depending D. has depended
27.I’m busy at the moment _______on the computer
A. I work B. I’m worked C. I’m working D. I worked
28.At this time tomorrow _______over the Atlantic
A. we’re flying B. we’ll be flying C. we’ll fly D. we’re to fly
29. Our friends _______next us at the airport tonight
A. are B. are going to C. go to D. will be to
30. When I entered the room, everyone _____________.
A. has been dancing B. was dancing C. had danced D. danced
31. He said that he _________ his homework since 7 o’clock.
A. had done B. did C. has done D. was doing
32. How long __________ able to drive? - Since 1990.
A. could you B. have you been C. were you D. are you
33. She won't get married until she __________ 25 years old.
A. is B. will be C. had been D. was.
34.This building used to be a library,_________?
A. doesn't it B. didn’t it C. isn’t it D. wasn’t it
35. Nobody was injured in the accident, ________?
A. was there B. was he C. were they D. wasn't it
36. Let's go out for a walk, ______?
A. not us B. don't we C. do we D. shall we
37. Jane and I________ school in 1987.
A. finish B. have finished C. finishes D. finished
38 . John and Ann ………. married last Saturday.
A. get B. got C. is getting D. have got
39. His brother…………….high school 6 years ago
A. finish B. finished C. finishes D. has finished
40. We have been living here………...1990
A. for B. from C. since D. during
41. Pasteur _____ in the 19th century.
A. was living B. lived C. had lived D. has lived
42. .Now my sister _____ a bicycle of her own.
A. is having B. are having C. has D. had
43 .Don’t bother me while I ………………..
A. am working B. was working
C. will work D. will have completed
44 .How ................since we ................school?
A. are you / left B. will you be / had left
C. have you been / left D. had you been/ had left
45.When he came..........................
A. I was watching TV B. I watched TV
C. I am watching TV D. I have watched TV
46. The piano _____ at the moment.
A. repairs B. repaired C. is repaired D. is being repaired
47. I saw Jack yesterday morning while I ________ home from work.
A. walked B. was walking C. am walking D. had been walking
48. My brother................out at weekend.
A. doesn’t usually go B. does usually not go
C. doesn’t usually goes D. usually doesn’t goes.
49. Every day, my sister .................the floor.
A. usually clean B. cleans usually C. usually cleaned D. usually cleans
50. Your English …………wonderfully since last month.
A. improved B. was improved
C. have improved D. has been improved
Ex1:Chia ĐT
1. In all the world, there (be) are only 14 mountains that (reach) reach above 8,000 meters.
2.He told me that he (take) would take a trip to California the following week.
3. That book (be)has been on the table for weeks. - Haven’t you (not read) read it yet ?
4. Half way to the office Paul (turn) turned round and (go) went back home because he (forget) had forgotten to turn the gas off.
5.I think Jim (be)has been out of town.
E.x 2:Khoanh
1. When I last saw him, he _____ in London.
A. has lived B. is living C. was living D. has been living
2. We _______ Dorothy since last Saturday.
A. don’t see B. haven’t seen C. didn’t see D. hadn’t seen
3. The train ______ half an hour ago.
A. has been leaving B. left C. has left D. had left
4. Jack ______ the door.
A. has just painted B. paint C. will have painted D. painting
5. My sister ________ for you since yesterday.
A. is looking B. was looking C. has been looking D. looked
6. I ______ Texas State University now.
A. am attending B. attend C. was attending D. attended
7. He has been selling motorbikes ________.
A. ten years ago B. since ten years C. for ten years ago D. for ten years
8. Christopher Columbus _______ American more than 500 years ago.
A. discovered B. has discovered C. had discovered D. had been discovering
9. He fell down when he ______ towards the church.
A. run B. runs C. was running D. had run
10. We _______ there when our father died.
A. still lived B. lived still C. was still lived D. was still living
11. They ______ table tennis when their father comes back home.
A. will play B. will be playing C. play D. would play
12. By Christmas, I _______ for Mr. Smith for six years.
A. will have been working B. will work C. have been working D. will be working
13. I _______ in the room right now.
A. am being B. was being C. have been being D. am
14. I ______ to New York three times this year.
A. have been B. was C. were D. had been
15. I’ll come and see you before I _______ for the States.
A. leave B. will leave C. have left D. shall leave
b1 : chọn đáp án đúng
15, I'll come and see you before i ....... for the States
A, leave B, will leave C, have left D,shall leave
16, The little girl asked what ........... to her friend
A, has happened B, happened C,had happened D, would have been happened
18, he said he ....... return later
A ,will B, would C,can D,would be
19 , jack.......... the door
A, has just opened B, open C,have opened D, opening
21, almost everyone ...... for home by the time we arrived
A, leave B,left C, leaves D, had left
22, By the age of 25, he ........... two famous novels
A,wrote B, writes C,has written D,had written
23, when her husband was in the army , Mary ......... to him twice a week
A, was reading B,wrote C,was written D,had written
24, i couldn't cut the grass because the lawn mower .......... a few days previously
A, broken down B, has been broken C,had broken down D,breaks down
25, i have never played badminton before.This is the first time i ......... to play
A,try B,tried C,have tried D,am trying
26, Since ...... ,i have heard nothing fron him
A,he had left B,he left C,he has left D, he was left
28, By the end of next year , Georege ...... english for two years
A, will have learned B,will learn C,has learned D, would learn
1. I ............Louisiana state University.
A. am attending
B. attend
C. was attending
D. attended
2. He has been selling motorcycles.................
A. ten years ago
B. since ten years
C. for ten years ago
D. for ten years
3. Columbus............America more then 400 years ago.
A. discovered
B. has discovered
C. had discovered
D. he has gone
4. He fell down when he ............towards the church.
A. run
B. runs
C. was running
D. had run
5. We ............there when our father died.
A. still lived
B. lived still
C. was still living
D. were still living
6. They ............pingpong when their father comes back home.
A. will play
B. will be playing
C. play
D. would play
7. By Christmas, I.............for you for 6 months.
A. Shall have been working
B. shall work
C. have been working
D. shall be working
8. I............in the room now.
A. am being
B. was being
C. have been being
D. am
9. I.............to New york three times this year.
A. have been
B. was
C. were
D. had been
10. I will come and see you before I.............for America.
A. leave
B. will leave
C. have left
D. shall leave
11. The little girl asked wha.............to her friend.
A. has happened
B. happened
C. had happened
D. would have been happened
12. John ............a book when I saw him.
A. is reading
B. read
C. was reading
D. reading
13. He said he............return later.
A. will
B. would
C. can
D. would be
14. Jack.............the door.
A. has just opened
B. open
C. will have opened
D. opening
15. I have been waiting for you…............
A. since early morning
B. since 9 a.m
C. for two hours
D. all are correct
16. My sister............for you since yesterday.
A. is looking
B. was looking
C. has been looking
D. looked
17. Jack............the door.
A. has just painted
B. paint
C. will have painted
D. painting
18. The train............half an hour.
A. has been leaving
B. left
C. has lelt
D. had left
19. We............Doris since last Sunday.
A. don’t see
B. haven’t seen
C. didn’t see
D. hadn’t seen
20. When I last saw him, he............in London.
A. has lived
B. is living
C. was living
D. has been living
21. After I............…lunch, I looked for my bag.
A. had
B. had had
C. have has
D. have had
22. By the end of next year, Geoge............…English for 2 years.
A. will have learned
B. will learn
C. has learned
D. would learn
23. The man got out the car ,............…round to the back and opened the boot.
A. walking
B. walked
C. walks
D. walk
24. For several years his ambition............…to be a pilot.
A. is
B. has been
C. was
D. had been
25. Henry............into the restaurant when the writer was having dinner.
A. was going
B. went
C. has gone
D. did go
26. He will take the dog out for a walk as soon as he ............dinner.
A. finish
B. finishes
C. will finish
D. shall have finished
27. Before you asked, the letter…............
A. was written
B. had been written
C. had written
D. has been written
28. Ask her to come and see me when she............her work.
A. finish
B. has finished
C. finished
D. finishing
29. Oil ............if you pour it on water.
A. floated
B. floats
C. will be floated
D. float
30. The dancing club.............north of the city.
A. lays B. lies
C. located
D. lain
31. Almost everyone............for home by the time we arrived.
A. leave
B. left
C. leaves
D. had left
32. By the age of 25, he ............two famous novels.
A. wrote
B. writes
C. has written
D. had written
33. While her husband was in the army, Janet ............ to him twice a week.
A. was writing
B. wrote
C. was written
D. had written
1. Jane________law at Harvard for four years.
A. is studying B. has studied C. studies D. studied
2. This time tomorrow________on the beach sunbathing and drinking freshly squeezed fruit juice!
A. I’ll have been lying B. I will lie C. I will be lying D. I will have lain
3. When I last saw him, he________in London.
A. is living B. has been living C. was living D. lived
4. When I________to the airport, I realized that I________my passport at home.
A. got/had left B. got/left C. had got/had left D. got/was left
5. He occasionally________a headache in the morning.
A. has had B. has C. have D. is having
6. The boy fell while he________down the stairs.
A. run B. running C. was running D.runs
7. I will come and see you before I________for America.
A. leave B. will leave C. have left D. left
8. His health_______ a lot since he________doing exercises regularly.
A. improves/ starts B. has improved /started
C. has improved / has started D. improved / had started
9. It is raining heavily with rolls of thunder. We________such a terrible thunderstorm.
A. would never see B. had never seen C. have never seen D. never see
10. I _______ my old teacher last week.
A. visited B. visit C. am visiting D. have visited
11. My brother usually ________me for help when he has any difficulties with his homework.
A. ask B. asks C. asked D. has asked
12. I ______ all of my homework last night.
A. finish B. will finish C. have finished D. finished
13. Lan________ learning English a few years ago.
A. starts B. will start C. started D. is starting
14. Only after she________from a severe illness did she realize the importance of good health.
A. would recover B. has recovered C. had recovered D. was recovering
15. The children________to bed before their parents came home from work.
A. were all going B. had all gone C. had all been going D. have all gone
16. For the last 20 years, we________significant changes in the world of science and technology.
A. witness B. have witnessed C. witnessed D. are witnessing
17. We________in silence when he suddenly________me to help him.
A. walked - was asking B. were walking - asked
C. were walking - was asking D. walked - asked
18. She usually _____ two hours a day
A. work B. is working C. works D. working
19. Don’t make noise. My mother _________ with her friends
A. is talking B. was talking C. talks D. talked
20. Listen! They _________ about the exhibition . Let’s join them
A. talk B. talked C. are talking D. have talked
21.Wait a minute. _________ the door for you.
A. I’ll open B. I open C. I opened D. I’ve opened