Giúp mình với

1. I didn't go to school yesterday.

2. She didn't play badminton last Sunday.

3. They didn't watch TV last night.

4. We didn't study English yesterday.

5. He didn't cook dinner last night.

6. Tom didn't clean his room yesterday.

7. The boys didn't play football in the yard.

8. She didn't listen to music yesterday evening.

9. I didn't visit my grandparents last weekend.

10. They didn't walk to the park yesterday.

11. My mother didn't wash the clothes.

12. He didn't paint a picture last night.

13. The children didn't study hard.

14. We didn't have lunch at school.

15. She didn't open the window.

16. He didn't carry a big box.

17. I didn't read that book last week.

18. They didn't live in Hanoi last year.

19. Nam didn't do his homework.

20. The dog didn't run fast yesterday.

$----$

$-$ Động từ "to be" (am, is, are) + not:

I am -> I am not (I'm not)

You are -> You are not (You aren't)

He/She/It is -> He/She/It is not (He/She/It isn't)

We/They are -> We/They are not (We/They aren't)

$-$ Động từ thường + didn't + động từ nguyên mẫu:

I went -> I didn't go

She played -> She didn't play

They watched -> They didn't watch

$*$ Lưu ý:

"Didn't" là dạng phủ định của động từ "to do" trong quá khứ đơn.

Động từ nguyên mẫu là dạng động từ không có "-s" hoặc "-ed".