1 join => joined

2 you did=> you do

3 I did => didn't

4 on => at

5 book => books

1 join => joined

2 you did=> you do

3 I did => didn't

4 on => at

5 book => books

ko có j

1, my uncle have an expensive car. 
have => has

2, It takes him a hour to repair that car.
a hour => an hour

3, She spends days to embroider that picture.
to embroider => embroidering

xác định và sửa lỗi sai trong các câu sau 

1, my uncle have an expensive car.

my uncle has an expensive car.

2, It takes him an hour to repair that car.

It takes him an hour to repair that car.

3, She spends days to embroider that picture.

She spends days embroidering that picture.

1 Have => Has  ( Vì my uncle= he nên phải chia have thành has)

2 a => an  ( Giờ thì phải đi với an )

3 to embroider => embroidering  ( Vì S+ spend + time + V_ing)

1 join should be joined

2 did should be do

3 ở câu trả lời did shpuld be didn't

4 on should be at

5 book should be books

1. is going to the market

2. a little => a few

3. bỏ to

4. Is => Does hoặc sửa teach => teaching

1. thêm to vào giữa going và the market
2. little -> few
3. to talk -> talking
4. teach -> teaching

started-was

met-was going-asked-wanted-to send

comes-is-is-does he do

Dear Peter,

I am a student in grade six in a chool in Hanoi city and this year I am twelve year=> years old. I live in a house with me=>my parents and my brother and my sister in a=>the country. It is very beautiful and quiet.I ride at=> to chool with my close friends every morning. I like listening to music and play=> playing soccer. On the weekends I often go out with his=>my friends. Sometimes we go to the cinema (about one a week), and sometimes we just go for a walk. My favorite subjest=> subjects at school are Math, English and Literature, and I don't like Geography. What about you? Please write with=>to me soon

1 could => can

2 rained => rain

3 was => were

4 have => had

5 didn't rain => hadn't rained

6 gives  => would give

7 studied => had studied

8 will => would

9 stops => stopped

10 are => were

11 is => were 

12 will => would

13 am => were

14 been => be

15 wish => wishes

1. wish => wishes.

2.  rained => rain.

3.was => were.

4.have => had.

5.didn't rain => hadn't rained.

6.gives => would give.

7.studied => had studied.

8.will => would.

9.stops => stopped.

10.are => were.

11.is => were.

12.will => would.

13.am => were.

14.been => be.

15.wish => wishes.

tìm lỗi sai và sửa

1) His family was very poor, because --> so he had to work for a company

2) You know where Lan is, do --> don't you?

3) when will you want to go fishing this morning?

I'll go with you

4) I've watched the film "What is about the life of other people?

5)If I met an ailen, I would invited --> invite him to go my home and talk together

tìm lỗi sai và sửa

1) His family was very poor, because=>but he had to work for a company

2) You know where Lan is, do=>don't you?

3) when =>If you want to go fishing this morning, I'll go with you

4) I've watched the film what=>which is about the life other people

5)If I met an ailen, I would invited=>invite him to my home and talk

Exercise 3: Tìm và sửa lỗi sai trong câu dưới (nếu có)
1. Yesterday, Minh didn’t want to coming => come to the theater with them because he had already
seen the film.
2. My brother used to running=> run a lot but he doesn’t do it usually now.
3. They’re going to have a small party celebrating=> to celebrate their house at 7 p.m tomorrow.
4. Wind tried to avoiding=>avoid answering her questions last night.
5. Khanh don’t forget post=> to post that letter that his mother gave him this evening.
Exercise 4: Viết lại câu sao cho nghĩa không đổi
1. It isn’t necessary to play football with my best friends today.
➔ You don’t ___have to play football with my best friends today._____________________________________.
2. “Why don’t we visit her parents next week?”
➔ You suggested ______visiting her parents next week______________________________.
3. Thanh spends 3 hours a day doing the homework.
➔ It takes …Thanh 3 hours a day to do the homework.
➔ Thanh wastes 3 hours a day doing the homework. …
4. Hanh said to him: “Remember to close all the window and turn off the lights before going
out”.
➔ Hanh reminded ____him to close all the window and turn off the lights before going
out_______________________________________.
5. Linh told him: “Don’t forget to repair my bicycle”.
➔ Linh told him _______to repair her bicycle____________________________.
Exercise 5. Choose the correct answer.
1. I do not have enough money _________ this book.
A. buy
B. to buy
C. buying
D. bought
2. It is no use _________ to school if you _________ to work hard.
A. going / do not ready
B. to go / do not ready
C. going / are not ready
D. go / are not ready
3. They spent all day _________ and _________ on the beach.
A. to swim / sunbathing
B. to swim / to sunbathe
C. swimming / to sunbathe
D. swimming / sunbathing
4. We were made _________ all the cleaning in the house.
A. to do
B. do
C. doing
D. done
5. We regret _________ you that you have exceeded your overdraft facility.
A. to inform
B. informing
C. to tell to
D. telling
6. Why don’t you try _________ the key anti-clockwise?
A. to turn
B. on turning
C. turning
D. turn
7. We don’t allow _________ in the classrooms.
A. that students smoke
B. smoke
C. students to smoke
D. to smoking
8. I really must _________ on with my work now.
A. to get
B. getting
C. get
D. to getting
9. Why don’t you do what you’re told, instead of _________ such a song and dance about it?
A. to make
B. making
C. made
D. make
10. I rashly posted the parcel without _________ it.
A. weighing
B. weigh
C. weighed
D. to weigh
11. Can you please _________ me a little about yourself?
A. to tell
B. telling
C. tell
D. going to tell
12. How can you waste all that money on _________?
A. gamble
B. to gamble
C. gambling
D. the gamble
13. “My watch is broken. ” “Why don’t you _________”
A. have it repair
B. have it repairing
C. have it for repair
D. have it repaired
14. Yesterday we did nothing but _________
A. talking
B. talked
C. talk
D. had talked
15. Instead of _________ a new car, she'll have her old one _________.
A. to buy / repaired
B. buying / to repair
C. buying / be repaired
D. buying / repaired
16. I tried _________ the bus, but I missed it.
A. catching
B. to catch
C. catch
D. catch up
17. I'm sorry I haven't got any money _______ you. Why don't you try _________ Peter?
A. to lend / to ask
B. lending / asking
C. to lend / asking
D. lending / to ask
18. After _________ asleep, I saw a strange person at the foot of the bed.
A. fall
B. falling
C. fell
D. fallen
19. After all this time, John should take the bull by the horns and ask Mary _________ him.
A. to marry
B. marry
C. marrying
D. married
20. He told me _________ early.
A. to try to come
B. to try coming
C. try to come
D. try coming