Can you do this lesson for me :
( 21 x 22 + 23 x 24 + 25 x 26 + ... + 39 x 40 ) x ( 14 : 2 - 6 - 1 )
You must answer it in english .
K
Khách
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BS
23 tháng 8 2021
Đây nè bạn, chúc bạn học tốt :))
(câu trả lời là phần in đậm nhé bạn)
21. Have you ever eaten Sushi?
22. She hasn't come here for a long time.
23. I have worked here for three years.
24. You can have done it whenever you want.
25. You haven't gone your project yet, I suppose.
26. Solar energy will use more in the future.
27. I just have decided to start working next week.
29. She hasn't had any fun a long time ago.
30. My father hasn't played any sport since last year.
31. I’d better have a shower. I haven't had one since Thursday.
32. I don’t live with my family now and we haven't seen each other for five years.
33. Look! It's raining.
34. My mother is cooking at the moment.
35. How long do you know each other?
36. Did you take many photographs on your last holiday ?
37. It is convenient to live near a market.
38. Dose he live here ?
39. She visited Hanoi last year.
40. Mai sometimes goes out with her friends.
ND
29 tháng 7 2019
Tag questions:
1.Mr. White is a tailor, ....isn't he......?
2.It isn’t ready yet, ..........is it....?
3.I am clever, .........aren't I..........?
4.We must hurry, ...needn't us.......?
5.They won’t stop long, ....will they....?
6.You asked for mustard, ...didn't you...?
7.She speaks too quickly, ......doesn't she.......?
8.He will arrive soon, ........won't he......?
9.The milk may be sour, .......may it not......?
10. Tom doesn’t like ham, ......does he.....?
11. They told me a lie, ...........didn't they....?
12. It can’t be so bad, ........can it.........?
13. It was a pity, ......wasn't it.......?
14. Jack is joining the club, ......isn't he......?
15. You mustn’t do that again, ...must you.......?
16. You ought not to eat that, ..ought you .....?
17. They have sold the house, .....haven't they.....?
18. Our team won the prize, ............didn't we......?
19. You are leaving here tomorrow, .....aren't you....?
20. You can’t come next week, .......can you.....?
21.You ought to leave now, .........oughtn't you......?
22. He should have come home earlier, .......shouldn't he............?
23. He daren’t do it, ......does he.......?
24. Go and get me some aspirins, ...will you....?
25. We need some more sugar, ....needn't we.....?
26.I may open it, ..may I not......?
27. You’d better keep quiet, ....hadn't you...?
28. He used to live near here, .......did he...?
29. Open it for me, ..will you.....?
30. Let’s sing it again, .....shall we.....?
31. He shouldn’t put so much salt in it, .....should he..?
32. Going swimming in the summer is very interesting, .....isn't it......?
33. Let’s dance together, ......shall we.......? The party is so wonderful.
34. Don’t talk in class, ......will you....? The teacher is explaining the lesson
35. Nobody understands what the lady over there says, .......do they.....?
36. The woman seldom writes poems and stories, ......does she.......?
37. Nothings makes you bored, ......do they....? Youalways look happy.
38. You have read this article on the website, .......haven't you...?
39. You don’t read this article on the website, ...do you.......?
40. She never tells the truth, .....does she......?
29 tháng 7 2019
1.Mr. White is a tailor, ....isn't he......?
2.It isn’t ready yet, ..........is it....?
3.I am clever, .........aren't I..........?
4.We must hurry, ...needn't us.......?
5.They won’t stop long, ....will they....?
6.You asked for mustard, ...didn't you...?
7.She speaks too quickly, ......doesn't she.......?
8.He will arrive soon, ........won't he......?
9.The milk may be sour, .......may it not......?
10. Tom doesn’t like ham, ......does he.....?
11. They told me a lie, ...........didn't they....?
12. It can’t be so bad, ........can it.........?
13. It was a pity, ......wasn't it.......?
14. Jack is joining the club, ......isn't he......?
15. You mustn’t do that again, ...must you.......?
16. You ought not to eat that, ..ought you .....?
17. They have sold the house, .....haven't they.....?
18. Our team won the prize, ............didn't we......?
19. You are leaving here tomorrow, .....aren't you....?
20. You can’t come next week, .......can you.....?
21.You ought to leave now, .........oughtn't you......?
22. He should have come home earlier, .......shouldn't he............?
23. He daren’t do it, ......does he.......?
24. Go and get me some aspirins, ...will you....?
25. We need some more sugar, ....needn't we.....?
26.I may open it, ..may I not......?
27. You’d better keep quiet, ....hadn't you...?
28. He used to live near here, .......did he...?
29. Open it for me, ..will you.....?
30. Let’s sing it again, .....shall we.....?
31. He shouldn’t put so much salt in it, .....should he..?
32. Going swimming in the summer is very interesting, .....isn't it......?
33. Let’s dance together, ......shall we.......? The party is so wonderful.
34. Don’t talk in class, ......will you....? The teacher is explaining the lesson
35. Nobody understands what the lady over there says, .......do they.....?
36. The woman seldom writes poems and stories, ......does she.......?
37. Nothings makes you bored, ......do they....? Youalways look happy.
38. You have read this article on the website, .......haven't you...?
39. You don’t read this article on the website, ...do you.......?
40. She never tells the truth, .....does she......?
25 tháng 8 2018
2 Choose the best answer to complete sentences
1 Would you like............to go............... to the theatre tonight
2 Nam enjoys......playing........ soccer after school
3 Lan asked me.....to go........... to the bookstore with her
4 Ba is.......going to buy............. a new bicycle next week
5 I think you should..........go.......... to school
6 They used.......to go............ fishing one the weekend
7 Don't let children...............play............near a lake
8 Mai is old enough..........to do.................in this factory
9 Hoa often...........plays................. badminton after school
10 Look! The children..........are doing........... their homework together
11 I am used........to .............a lone
12 Mr Ba said I should.............spend............. more time on my Enghlish
13 Mrs Ha told me..........to tell............. him the truth
14 Nga likes........playing.............badminton
15 Nam must.......help.......his mother do the housework
16 Nga..............bought......... a new English book last week
17 Hoa'd like..........to drink.................some oranges
18 Mr. Anh stopped............talking...................
19 I'm enrolling........for................the activities for this summer
20 Let's me...........give............... you an application form
21 May I help you?- No, thank you......so much........
22 I need a favor- What can I.......help........for you?
23 Can I participate.....in..............this programe?
24 What do you like..........to do............... in your freetime?
25 What are you interested..........in........?
30 tháng 12 2017
Dear Jan and Robin,
How are you (21)_____ ? Well, I hope. We're OK, working (22) _____, as usual. Can I ask you a favor? I'm (23)_______London for two (24) _____ next week, Thursday and Friday. Can you (25) ______ me a bed? I would be really grateful. Give me a ring (26)_______ there's a problem. Book that Greek restaurant again! It's my turn to pay!
Love to the kids. See you soon.
Peter
21. a. all b. both c. each d. every
22. a. hard b. hardly c. careful d. lately
23. a. in b.at c. on d. when
24. a. hours b. nights c. weeks d. months
25. a. give b. to give c. giving d. to giving
26. a. when b. if c. so d. although
KS
30 tháng 12 2017
Dear Jan and Robin,
How are you (21)_____ ? Well, I hope. We're OK, working (22) _____, as usual. Can I ask you a favor? I'm (23)_______London for two (24) _____ next week, Thursday and Friday. Can you (25) ______ me a bed? I would be really grateful. Give me a ring (26)_______ there's a problem. Book that Greek restaurant again! It's my turn to pay!
Love to the kids. See you soon.
Peter
21. a. all b. both c. each d. every
22. a. hard b. hardly c. careful d. lately ( hay là hardly ấy , không biết có đúng không nữa )
23. a. in b.at c. on d. when
24. a. hours b. nights c. weeks d. months
25. a. give b. to give c. giving d. to giving
26. a. when b. if c. so d. although
LD
12 tháng 8 2017
IV. Change the following sentences into passive form.
1. He can't repair my bike
my bike can't be repaired
2. Our teacher used to bid us talk in class.
we used to be bidden to talk in class by Our teacher
3. Visitors must leave umbrellas and raincoats in the cloakroom
umbrellas and raincoats must be left in the cloakroom byVisitors
4. My mother used to make us clean the house.
we used to be made to clean the house by my mother
5. they will have to build a new bridge here.
a new bridge will have to be built here.
6. She can sew three shirts a day . ( sewn- pp )
three shirts can be sewn a day
7. We have to pick fruit every morning .
fruit has to be picked every morning .
8. You must wash your hands before meal.
your hands must be washed before meal.
9. I couldn't catch any fish.
no fish could be caught
10. The computer can do the account.
the account can be done by the computer
11. Children should treat old men with respect.
old men should be treated with respect by Children
12. How many ways can you solve this problem?
How many ways can this problembe solved?
13. He might phone me tonight.
i might be phoned tonight
14. Students ought to prepare their lessons before class.
their lessons ought to be prepared by Students before class.
15. Lan would cook meals .
cook meals would be cooked by Lan
16. Mary has to cook lunch every day .
lunch has to be cooked by Mary every day .
17. Hoan had to clean the classroom yesterday.
the classroom had to be cleaned by Hoan yesterday.
18. He can speak 4 languages.
4 languages can be spoken by him
19. You can't wear this shirt because it is too small .
this shirt can't be worn because it is too small .
20. Can you speak English ?
can english be spoken by you?
21. They are going to rebuild our school next month .
our school is going to be rebuilt next month .
22. People say that he sings as well as a singer.
it is said that he sings as well as a singer.
23.We have to solve this problem at once.
this problem has to be solved at once.
24. I used to help her when she was a child .
she used to be helped when she was a child .
25 . She had to prepare her lesson before the test.
her lesson had to be prepared before the test.
26. Lan got used to clean the windows last year.
the windows got used to be leaned by Lan last year.
B
16 tháng 1 2020
1. Điền động từ khuyết thiếu ''mustn't'' hoặc ''don't have'' vào chỗ trống thích hợp.
1. There is a ''No turn right'' sign. You ...mustn't... turn right.
2. The sign says ''No smoking''. You ...mustn't... smoke here.
3. You ...don't have to... have an appointment for this doctor. You cam go and see him when you want.
4. You ..don't have to.... tell me. I already know.
5. The big boss will be at the meeting. You ...mustn't... be late.
6. You can help me if you want to but you ....don't have to..
7. You ...mustn't... park your car there. That's the Director's place.
8. This area is off limits to everybody. You ...mustn't... come here unless you are unvited.
9. You ...don't have... to wear a tie in this company but they prefer it if you do.
10. You ....mustn't.. criticize David. He's doing the best he can.
11. You ..mustn't.... drive there. You can take the train.
12. You ....mustn't.. play tennsis to enjoy watching tennis matches.
13. You ..don't have to.... buy me presents though I always appreciate it when you do.
14. It's really important to remember. You ...mustn't...forget.
15. You ...mustn't... tell anybody. It is a big secret.
16. We are already late. We ...mustn't... waste any more time.
17. This is a sterile area. It must be kept clean. You ...mustn't... bring any food or drink in here.
18. You ...don't have to... come at 8:00. Come at whatever time suits you.
19. You ....mustn't.. smoke in this area. It is forbidden.
20. I ...don't have... go back again. The treatment is finished.
21. eans are not allowed in this company. You ...mustn't... wear jeans.
22. You ...mustn't... be mad to work here but it helps !
23. You ...don't have to... buy the text book for this course, you can borrow mine.
24. You ...mustn't... smoke in a gas station.
25. This bus is free ! You ...don't have to... buy a ticket.
26. You .mustn't..... enter the park if your dog is not on a leash.
2. Điền ''mustn't hoặc needn't vào chỗ trống.
1. I ...needn't... take the umbrella. It won't rain.
2. I ..needn't.... cross this bridge. It's closed.
3. We ...mustn't... be late. The train will leave in 10 minutes.
4. You ...needn't... hungry. We have plenty of time.
5. You ....mustn't.. smoke in here. It's forbidden. Look at that sign.
6. We have enough diesel, so we ....needn't.. sop here.
7. You ...needn't... come if you don't want to.
8. They ...needn't... do the washing up, they have a dishwasher.
9. You ..mustn't.... show this e-mail to anyone else. I'll trust you.
10. The students ...mustn't... forget their home work.
18 tháng 1 2020
1. Điền động từ khuyết thiếu ''mustn't'' hoặc ''don't have to'' vào chỗ trống thích hợp.
1. There is a ''No turn right'' sign. You ..mustn't.... turn right.
2. The sign says ''No smoking''. You ....mustn't.. smoke here.
3. You ...don't have to... have an appointment for this doctor. You cam go and see him when you want.
4. You ...don't have to... tell me. I already know.
5. The big boss will be at the meeting. You ...don't have to... be late.
6. You can help me if you want to but you .don't have to.....
7. You .mustn't..... park your car there. That's the Director's place.
8. This area is off limits to everybody. You ...mustn't... come here unless you are unvited.
9. You ..don't have to.... to wear a tie in this company but they prefer it if you do.
10. You .don't have to.... criticize David. He's doing the best he can.
11. You ...mustn't... drive there. You can take the train.
12. You ...don't have to... play tennsis to enjoy watching tennis matches.
13. You ...don't have to... buy me presents though I always appreciate it when you do.
14. It's really important to remember. You ...mustn't...forget.
15. You ....don't have to.. tell anybody. It is a big secret.
16. We are already late. We ...mustn't... waste any more time.
17. This is a sterile area. It must be kept clean. You ....don't have to.. bring any food or drink in here.
18. You ....don't have to.. come at 8:00. Come at whatever time suits you.
19. You ..mustn't.... smoke in this area. It is forbidden.
20. I ...don't have to... go back again. The treatment is finished.
21. eans are not allowed in this company. You ...don't have to... wear jeans.
22. You .don't have to..... be mad to work here but it helps !
23. You ...don't have to... buy the text book for this course, you can borrow mine.
24. You ..mustn't.... smoke in a gas station.
25. This bus is free ! You ...don't have to... buy a ticket.
26. You ....don't have to.. enter the park if your dog is not on a leash.
2. Điền ''mustn't hoặc needn't vào chỗ trống.
1. I ...needn't... take the umbrella. It won't rain.
2. I ...mustn't... cross this bridge. It's closed.
3. We ...mustn't... be late. The train will leave in 10 minutes.
4. You ...mustn't... hungry. We have plenty of time.
5. You ...mustn't... smoke in here. It's forbidden. Look at that sign.
6. We have enough diesel, so we ..mustn't.... sop here.
7. You ...needn't... come if you don't want to.
8. They ...needn't... do the washing up, they have a dishwasher.
9. You ....mustn't.. show this e-mail to anyone else. I'll trust you.
10. The students ..mustn't.... forget their home work.
5 tháng 10 2018
Exriteercise : Rew following sentences so that the meaning stay the same
1.''Can you speak English ?'' Mr.Brown said.
--> Mr.Brown asked me ..if I could speak English ..
2.''What do you usually do in your free time?''
-->..She asked me what i usually did in my free time ..
3.She asked him ''What is your name?'
-->..She asked him What his name was..
4.They said to him ''We must finish these works on time''
-->...They said to him that they had to finish those works on time
5.''Do you like to play this game?'' said they
-->.they asked me if i liked to play that game..
6.She asked me''Why do you have to do this work?''
-->.She asked me why i had to do that work ...
7.He said to me''Do this test again , please!''
-->.He told me to Do that test again..
8.They asked him''Shall we go yo the stadium tomorrow ?''
-->..They asked him to go yo the stadium the next day..
9.The teacher said to them''Don't make noise in class!''
-->..The teacher told them not to make noise in class..
10.Mary said to me''Can I borrow you some money?''
-->...Mary told me to borrow me some money'.
11.''If you want to learn English , I can help you'' John said
-->.John said If you wanted to learn English , I could help you'...
12.''Where are you studying?'' Mr Bruce said
-->..Mr Bruce asked me where i was studying..
13.Please call me at 6 o'clock tomorrow morning'' said Mai
-->...Mai told me to call her at 6 o'clock the next day morning.
14.''Are you interested in this Language Center?'' asked Lan
-->..Lan asked me if i was interested in that Language Center..
15.''We will spend our holiday in Da Lat next month'' said Mrs Chi
-->...Mrs Chi said that they would spend their holiday in Da Lat the next month.
16.''Do you live here?'' Liz asked
-->..Liz asked me if i lived here..
17.''What does your son want to learn?'' the man said to Mr Linh
-->. the man asked Mr Linh what his son wanted to learn...
18.''You must come today'' Hoa said
-->..Hoa said You had to come that day..
19.''I don't understand what you are saying''Tom told us
-->.Tom told us that he didn't understand what we were saying...
20.''There isn't any information about these colleges'' Nam said
-->..Nam said There wasn't any information about those colleges..
5 tháng 10 2018
21.''I have something to show you now''He said to me
-->.He said to me that he had something to show me then ..
22.''I will come with you as soon as I am ready''Tom said to her
-->.Tom said to her that he would come with her as soon as he was ready...
23.''I must go now '' The father said to us
-->.The father said to us that he had to go then...
24.''Who put the salt in my cup of coffe''ased Peter
-->.Peter asked me who had put the salt in his cup of coffe ...
25.''Why do youcome here late?'' said she
-->...she asked me why i came there late.
26.''Can you play the piano?''He said
-->.He asked me if i could play the piano...
27.''Where do you live the boy?''asked the man
-->..the man asked me where i lived the boy..
19 tháng 8 2017
Change these sentences into the passage voice
1. We are going to grow flowers in the front garden
flowers are going to be grown in frotn of gardEn.
2. You mustn't use this machine after 5.30 o'clock
THIS MAHINE MUSTN'E BE USED AFTER 5.30 O'CLOCK.
3. My grand mother is knitting a new sweater for me
A NEW SWEATER IS BEING KNITTED FOR ME BY MY GRAND MOTHER.
4. Don't touch this switch
Don't let this switch be touched.
5. He like people to call him sir
HE LIKE BEING CALLED SIR
6 . we don't allow smoking
SMOKING ISN'T ALLOWED
7. I am going to red her latest book.
HER LASTEST BOOK IS GOING TO BE READ
8. You can't wash this dress. You must dry it
This dress can't be washed; it must be dry-cleaned
9. They are going to have us repair their house
THEY ARE GOING TO HAVE THEIR HOUSE REPAIRED
10. People said that he is handsome
HE IS SAID TO BE HANDSSOME
11. They can't make tea with cold water
TEA CAN'T BE MADE WITH COLD WATER
12. The chief engineer was instructing all the workers of the plant
ALL THE WORKERS OF THE PLANT WERE BEING INSTRUCTED BY THE CHIEF ENGINEER.
13. They will hold the meeting before May day
THE MEETING WILL BE HELD BEFORE MAY DAY
14. Thevhave to repair tje engine of the car
THE ENGINE OF THE CAR HAS TO BE REPAIRED
15 . you must clean the wall before you paint it
THE WALL MUST BE CLEANED BEFORE IT IS PAINTED
15. They told the new pupil where to sit
THE NEW PUPIL WAS TOLD WHERE TO SIT
16. I knew that they had told him of the meeting
I KNEW THAT THE MEETING HAD BEEN TOLD HIM
17 . will you invite her to your wedding party?
WILL SHE BE INVITED TO YOUR WEDDING PARTY ?
18. Is she going to write a pome?
IS A POME GOING TO BE WRITTEN ?
19. Must we finish the test before ten?
MUST THE TEST BE FINISHED BEFORE TEN ?
20. Will buses bring the children home?
WILL THE CHILDREN BROUGHT HOME BY BUSES ?
21. How can they open this safe
HOW CAN THIS CAFE BE OPENED ?
22. How did the po lice find the lost man?
HOW WAS THE LOST MAN FOUND BY THE POLICE ?
21. What time can the boys in their papers?
WHAT TIME CAN THE BOYS' PAPERS BE ... ?
22. My father bought me a video recorder
=>A video recorder..WAS BOUGHT FOR ME.BY MY FATHER
23. The police didn't interview the witness
=>The witness WASN'T INTERVIEWED BY THE POLICE
24. He hasn't seen the younger son for three weeks
=> the younger son HASN'T BEEN SEEN BY HIM FOR THREE WEEKS
25. People say that his father is french
=> it is said THAT HIS FATHER IS FRENCH
26. I'll have someone remove the fence
=> i'll have the fence REMOVED
H
30 tháng 7 2018
Change into reported speech
1.''How long have you been learning English '' aked the man
=>The man asked me how long l had been learning English.
2.''Are you American or do you come from Africa'' asked the examiner
=>The examiner asked me if l was American or if l came from Africa.
3.''I'll call you if urgent'' said Tom
=>Tom said that he would call you if urgent.
4.He said, ''I can't take my children to school because I'll have an exam tomorrow''
=>He said that he couldn't take his children to school because he would have an exam the following day.
5.He said, ''I must prepare the lesson before going to class
=>He said that he had to prepare the lesson before going to class
6.The woman said, ''You mustn't play in the street. The traffic is busy''
=>The woman said that you hadn't to play in the street. The traffic was busy.
7.''I like your new dress''
Peter said that he liked your new dress ....
8.''You look nice this morning''
Peter told me that l looked nice that morning ..
9.''I'm waiting for my parents now''
Peter said that he was waiting for his parents then...
10.''I'll help you whenever you need me
Peter told me that he would help me whenever l needed him ...
11.''This is the longest film that I've seen''
Peter told me that That was the longest film that he had seen...
12.''I'll come with you as soon as I'm ready''
Peter said thay he would come with you as soon as he was ready .
13.''There will be a good cartoon on TV tomorrow evening''
Peter told me that there would bbea good carton on TV the following evening ..
14.''You can use my telephone if you need''
Peter said that you could use his telephone if yoi needed.
15.''You are my best friend''
Peter told me that l was his best friend .
16.''If you meet my father, you will recognize him at once''
Peter said that if you met his friend, you would recognize him at once..
17.''I'm afraid that we'll be late for school''
John told me that he was afraid that they would be late for school.
18.''I must stay at home tonight to finish my homework''
John said that he had to stay at home that night to finish his homework ..
19.''I promise to come with you tomorrow''
John said that he promised to come with you the following day ...
20.''We can find a lot of good English books in this bookshop''
John told me that they could find a lot of good English books in that bookshop.
I have :
\(14\div2-6-1\)
\(=7-6-1\)
\(=1-1\)
\(=0\)
Vì trong 1 tích mà có thừa số 0 thì tích bằng 0, ta thay :
\(\left(21\cdot22+23\cdot24+25\cdot26+...+39\cdot40\right)\cdot0\)
\(=0\)
Yes, I can. Here's my answer:
\(\left(21\times22+23\times24+25\times26+...+39\times40\right)\times\left(14\div2-6-1\right)\)
\(=\left(21\times22+23\times24+25\times26+...+39\times40\right)\times0=0\)