31. Some animals (not eat) _________ during the winter.
32. I (not play) _________ football since I (break) _________ my leg.
33. It was 11 o’clock and we (just go) _________ to bed when the telephone (ring) _________.
34. I (think) _________ your father’s heath (improve) _________so much sinse I (see) _________ him last.
35. There (be) _________no guests at all since I left.
36. We hope that you (enjoy) _________ the concert last night.
37. Look! That little girl (run) _________ to catch the bus .
38. By the time I got to Mai’s house , She already (leave) _________ for work.
39. Do you think it (rain) _________ tomorrow?
40. I hope they (repair) _________ this road by the time we (return) _________ next summer.
41. Anna and Susan (make) _________ dinner when Martin (arrive) _________ home.
42. My grandmother (visit) _________ us next Sunday. Would you like (meet) _________them?
43. Paul (be) _________ born in France, but now he (live) _________in America with his uncle.
44. I hope my sister (send) _________ me a letter soon.
45. Trung’s father (teach) _________him how (ride)_________.
46. We (go) _________ to Ha Long Bay this weekend.
47. Did you use to play so much when you (live) _________ in the country?
48. Yesterday Hoang (spend) _________ two hours (repair) _________ his computer.
49. They (work) _________ very much when they (be) _________ young.
50. They (leave) _________ Hanoi for HCM city yesterday.
31,don’t eat
32,haven’t played/broke
33,had just gone/rang
34,think/improved/saw
35,was
36,enjoyed
37,is running
38,leave
39,is raining