21. Do you mind if I (fix) ______________ this broken chair for you ?

22. Would you mind (make) ______________ a birthday cake?

23. My brother is good at ______________ (fix) things.

24. May I ______________ (go) out now , Mom?

25. I want (come) ______________with my mother.

26.The doctor advised me(not smoke) ______________ cigarettes.

27. The boys stopped (play) ______________ football because of the rain.

28. Mai's mother told Mai (correct) ______________ the mistakes in her dictation.

29. Would you like (listen) ______________ to some music?

30. Nam enjoys ( play) ______________ soccer after school.

31. Lan asked me (go) ______________ to the supermarket.

32. I think you should (do) ______________ morning exercises regularly.

33. They used (go) ______________ to work by train.

34. Don’t let children (play) ______________ with matches.

35. You ought to (do) ______________ the homework yourself.

36. My father stopped (smoke) ______________ five years ago.

37. Mai doesn't have enough money (buy) ______________ a new bicycle.

38. I need (buy) ______________ some notebook.

39. My teacher said I should (spend) ______________ more time on my English.

40. Mr Hung told me (tell) ______________ him the truth.

41. Nga likes ( play) ______________ badminton.

42. They asked their children ( stay) ______________ at home.

43. Nam must (do) ______________ the homework himself.

44. My mother decided ( buy) ______________ a house last week.

45. I'd like (buy) ______________ some eggs.

46. The woman (sit) ______________ between Mrs. Hoa and Mrs. Ha is my mother.

47. I enjoy (play) ______________ soccer after school.

48. The doctor advised me (not smoke) ______________ cigarettes.

49. Would you like ( take) ______________ a photo?

50. It is interesting ( study) ______________ English.