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sửa lỗi sai :
a.khoa's professor had him to write his thesis many times before allowing him to present it to the committee.
A. to write
B . many times
C. allowing
D. to the committee
b. I think Hanh is accustomed to work eight hours a day
A. think
B. is
C. work
D. a day
c. The more frequent you exercise , the greater physical endurance you will have
A. frequent
B. exercise
C. greater
D. will have
d.Only when you have had a chance to know various occupations you will decide on your career .
A. only when
B. have had
C. to know
D. you will decide
e. I tried to do everything to contact Minh two weeks ago but so far I don't receive his reply
A. tried to do
B . to contact Minh
C. so far
D. don't receive
1. we do not visit the museum because we have no time
A. If we have time, we will visit the museum B. if we had time, we would visit the museum
C. if we had time, we would have visited the museum D. if we had time, we will have visited the museum
2. ..........i have time, I will go with you
a. if B. unless C. so D. so that
3. If i .........who took your umberella, I would tell you
A. know B. knew C . known D. had know
4. If the automobile had not been in invented years ago,.......for basic transporttation now
a. what we would use b,what would we use c, what we will have used d, what we will be using
5, if the police had not saved me, i ..........at that time
a. will die b. would die c, will have died d, would have died
6. if i had time, i........and help you
a. will come b, would come c, will have come d, would have come
7, if I ......the truth, i would tell you
a, will know b, know c, hvae known d, knew
8, I'll return Bob' pen to him the next time if I .....him
a, will see b, see c, will have see d, have seen
9. I' d have told you if I .......the book
a, would have been b, should have seen c, had seen d,saw
10, If I..............more time , I would not have said such nonsense
a, am b, have been c, will be d,had been
By the end of the month I in this town for ten years.
A. will have been living B. have been living
C. will live D. am living
2. By the end of this week we on the project for a month.
A. have been working B. have worked
C. will have been working D. will work
3. By July the fifth they are studying
A. are studying B. will study
C. will have studied D. will have been studying
4. By 10 o'clock she (watch) TV for 4 hours.
A. will have been watching B. has been watching
C. is watching D. will watch
5. She for 10 hours by 11 o'clock.
A. will have been sleeping B. has sleeping
C. is sleeping D. will sleep
6. We him for 40 days by next Saturday.
A. will look for B. are looking for
C. will have been looking for D. will have been looking
7. They (wait) for the president for 5 hours.
A. will have been waiting B. are waiting
C. will wait D. have waited
1. I ________ here when you arrive tomorrow.
A. am B. had been C. could be D. will be
2. I am going to wait right here until Jessica ________.
A. comes B. will have come C. is coming D. came
3. As soon as the war ________over, there will be great joy throughout the land.
A. are B. will be C. is D. would be
4. Right now the tide is low, but when the tide comes in, the ship ______ the harbor.
A. left B. will leave C. will have left D. leave
5. I am going to start making dinner before my wife ______ home from work today.
A. get B. gets C. will get D. got
1. I ________ here when you arrive tomorrow.
A. am B. had been C. could be D. will be
2. I am going to wait right here until Jessica ________
. A. comes B. will have come C. is coming D. came
3. As soon as the war ________over, there will be great joy throughout the land.
A. are B. will be C. is D. would be
4. Right now the tide is low, but when the tide comes in, the ship ______ the harbor.
A. left B. will leave C. will have left D. leave
5. I am going to start making dinner before my wife ______ home from work today.
A. get B. gets C. will get D. got
1 we did not visit the museum because we had no time
a if we have time , we will visit the museum
b if we had time , we would visit the museum
c if we had had time , we would have visited the museum
d if we had had time , we will visit the museum
2 he looked frightened as if he ................
a ghost a sees b is seeing c has seen d had seen
3 ........... resigned , we would have been forced to sack him
a had he not b had not he c he had not d he not had
4 if you ................ me about the bad service , we’d have eaten there
a did not tell b would not have told c had not told d had told
5 the teacher was absent today, so class was canceled . if she ........... absent again tomorrow , class ........ tomorrow,too
a is/will cancel b is / will be canceled c was / would be canceled d was/ would cancel
6 if you .................. to my advice in the first place , you............... in this mess right now
a listen/will be b had listened / would not have been c will listened / would not be d had listened/ would not be
7 if i had been absent from class yesterday , i ............. the math test
a would missed b would have missed c will miss d miss
8 if you ............... here earlier , you ............. her
a had come / would have met b come / meet c came / would meet d comes will meet
9 i think you should stop smoking
a if i am you , i will stop smoking
b if i were you , i will stop smoking
c if i were you , i would stop smoking
d if i had been you , i would stop smoking
10 if i were , i would work harder
a you would rather not work so hard
b you should work harder
c you should work with me
d do not work so hard
1 if i ............ the bus this afternoon , i will get a taxi instead
a miss b will miss c missed d had missed
2 we will have to go without john if he .............. soon
a will not arrive b will arrive c arrives d does not arrive
3 if i make some coffee , ................ the cake ?
a do you cut b will you cut c are you cutting d do not you cut
4 if you ............... your homework , i ...................... you watch tv
a will not do / let b will press/comes c press / can come d have pressed / will comes
5 ............... you , i would think twice about that decision . it could be a bad move
a if i am b should i be c were i d if i had been
6 would you like some cake ? - no thanks . if i ................ cake , i ...........fat .
a ate/will get b ate / would get c would eat / could get d am eating/will get
8 pam broke her arm in the accident . it ................. much worse if she had not been wearing her seat belt
a will be b would have been c was d were
9 my boss made me work overtime again . - if i ............ you , i ................ my job
a were / would have quit b am/ will quit c was/must quit d were / would quit
10 john went to the hospital alone - did he ? if he ............. me,i ... with him
a told/ would go b told / might have gone c had told / could go d had told/would have gone