31. __________ you give him the book back or not, I’ll tell the teacher. (if)

32. Our English teacher always makes her classes ___________. (live)

33. Unluckily, he was __________ hurt in this accident. (bad)

34. Their __________ number is CA 322. (fly)

35. Trees can often prevent floods and _________. (dry)

36. I’d like two _________ sweaters for my daughter. (wool)

37. He went to _________ last year and met a lot of friendly ______. (German)

38. That is used for __________ my bike. (lock)

39. Most of the international business letters are ________ in English. (write)

40. Would you mind my __________ the window? (open)

41. Look! That young man is practicing ________English with my uncle.

42. Yesterday my friend felt __________ ill. (terrible)

43. Everyone should make a contribution to ______ the environment. (protect)

44. Of all the students in our class, Lucy talks _______ and does most. (little)

45. Listen! I hear someone _________ next door. (sing)

46. The sun always shines _________ at this time of year. (bright)

47. Some _________ will come to visit our school. (foreign)

48. Li Ping is in his ________ year at No. 4 Middle School.

49. There __________ great changes in our country since 1979. (be)

50. My grandma told me an __________ story last night. (usual)

51. The Greens _________ lunch now. (have)

52. We __________ the Great Wall in two days. (visit)

53. Yesterday I ___________ that we would have a picnic in the park. (tell)

54. So far, no man has traveled __________ than the moon. (far)

55. We must clean our hands before ___________ meals. (have)

56. I think walking long hours _________ hard for the children. (be)

57. If anyone is ill here, the doctor must __________ for. (send)

58. Tom is faster than any other __________ in his class. (run)

59. I’m looking forward to _________ your letter soon. (receive)

60. I was __________ to see the ___________ result of my exam. (surprise)