55. When the old man was alive, he ______ sit for hours at the door.　　　 would

54. You can’t imagine that a well-behaved gentleman ______ be so rude to a lady.

should

53. --- Why didn’t you come to see me?

　 --- I ______, but I was too busy yesterday.

　would like to have

52. He ___ have the book when I finish reading it .　　　　　　　　　 shall

51. A wise man ____ sometimes make a mistake.　　　　　　　　　　 can

50. I wish to go home now, ____ I ?　　　　　 　　　　　　　　　　　may

49. Children under 12 years of age in that country ____ be under adult supervision when in library.　　　　　　　 　　　　　　　　　　　　　　must

48. ----Isn’t that Ann’s husband over there ?

　 ----No, it be can’t him--- I’m sure he _______wear glasses. 　　　　doesn’t

47. --- Shall I tell John about it ?

---No, you _____ . I’ve told him already.　　　　　　　　　　　　 Needn’t

46. The fire spread through the hotel very quickly but everyone _____ get out.

was able to