children là số nhiều đi với have

còn nếu là child thì là số ít đi vs has nha

còn 1 số từ gần giống vs children : 

man-men

woman-women

tooth-teeth

foot-feet

mouse-mice

.....

khá nhiều , bn tra trên gg là ra đó!

have nhé bạn

tk giúp mik nha

S + have/ has + V3

V phân từ 2 

Thì hiện tại hoàn thành thì Là : 

S + have / has + VpII....

I / you / we / they / danh từ số nhiều + have ....

He / she / it / danh từ số ít / danh từ không đếm được + has....

I want to buy some medicine

\(\text{I want to buy some}\) \(medicine\)

books

books

I want to buy some books

chủ ngữ là she / he thì người ta dùng has

He She it di voi has con T You We They di voi have

has bạn nhé

She got her classmate close the window.

I made my son sweep the floor.

My father let the mobile phone used by me.

My parents never let anything be done by myself because I’m very careless

I have my bike repaired by my brother.

Mary gets her hair cut by her mother.

Kate had an email sent to her manager.

She had her luggage brought to the hotel room by the server.

1. Let's organize a car wash. 

(Hãy cùng tổ chức rửa xe gây quỹ.) 

2. How about we have a craft fair? 

(Chúng ta có nên có một hội chợ thủ công không nhỉ?)

3. Let’s not organize an art show. 

(Đừng tổ chức một chương trình nghệ thuật.)

4. How about organizing a talent show? 

(Việc tổ chức một chương trình tài năng thì sao?)

5. We should have a fun run. 

(Chúng ta nên có một cuộc chạy vui.)

6. How about we bake and sell cookies? 

(Chúng ta có nên nướng và bán bánh quy?)

1. Tom has seen this film before.   -> This film …………has been seen by Tom before……………………………….. .

2. Nina has already read the newspaper.  -> The newspaper………has already been read by Nina…….

3. They haven’t seen these movies yet.    -> These movies…………haven't been seen yet……..

4. I have just signed the contract.  -> The contract……has just been signed……………..

5. These men have bought the tickets in the office since last week..

-> The tickets………have been bought in the office since last week..………………………….

6. My sister have bought this teddy bear in that shop for two days.

-> This teddy bear…in that shop has been bought by my sister for 1 days …………………………………

7. I had bought this pen before I went to bed last night.

-> This pen……had been bought I went to bed last night. ……………………….

8. Nina had washed the dishes before her mother came home.

-> The dishes…had been washed by Nina before her mother came home.………………………………………….

9. Hoa had written a report before 9p.m last night.   -> A report………had been written by Hoa before 9p.m last night…………………..

10. After I had cleaned the house, I went to school.   -> After the house ………had been cleaned, I went to school.   …………………….

11. They will sell their house next month.   -> Their house…………will be sold next month…….

12. Miss Nga will do volunteer work at the orphanage next Sunday.

-> Volunteer work ……will be done by Miss Nga at the orphanage next Sunday.………………………………..

13. She can make portery .  -> Portary ………can be made by her…………………. .

14. I must finish my homework before going to school .   -> My homework…………must be finished before going to school…………………….

15. You should brush your teeth twice a day.    -> Your teeth ………………should be brushed twice a day………………………………………………

17. Nga is going to visit her grandparents this weekens.

-> Her grandparents ………are going to be visited by Nga this weekens.……………………………. .

18. They are going to open a clothes shop near my house next month.

-> A clothes shop …………is going to be opened near my house next month. …………………………………………………………………………….. .

19. He will send me a letter tomorrow.     -> I ……………………………………….. .

20. You should help your mun with the housework.   -> Your mum …………………..

S: the car
O: (they)
V: repaired
active: Have they repaired the car yet?

S: the car
O: (they)
V: repaired
active: Have they repaired the car yet?