19. Was

20. did you go

21. went

22. did you learn

23. Did you finish

24, hit ( từ này 3 cột như nhau)
25. didn't eat

26. didn't drink

27. did he take

28. did it take

29. did you meet

30. was

31. is going

32, is crying

33. Is- sitting

34. are trying 

35. have

36, have hered

37. is - have just watched

38. writes

39. Do - speak

Bài 4: 

1. He hasn't gone abroad before.

2. She has driven car for 1 month.

3, We have learnt English since we were 5 years old.

4. I haven't cut my hair since i left her.

5, She hasn't kissed me for 5 months.

6. Minh really enjoys hanging out with his friedns.

7. It's interesting to play beach games.

8. Do you kind changing this T-shirt for me?

Bn hok tốt!!

Vote 5* và hay nhất cho mik nhé!!!