72.------Where were you this morning?I tried to call you.

　 ------I _____ to the library for a while.

　 A.tried to go　 　　　B.should go　　 　　C.must go　　 　　　　　D.had to go

71.------I didn’t see him yesterday.

　 ------Oh,but you______.

　 A.ought to　 　　　　B.should have　　 　　’t have　 　　　　　D.may have　　

69.I____like to become a pianist some day.

　 A.will　 　　　　　B.may　　 　　　　C.would　 　　　　　　D.shall

70 He_____there now,but I am not sure.

　 A.maybe　　 　　　　B.may be　 　　　C.may have been　　 　　D.might have been

68.I_____that time is more valuable than money.

　 A.hardly need say　　 B.need hardly say　 C.need hardly to say　　 D.hardly need to say

67.------Why didn’t you answer when I called you?

　 ------I_____but you didn’t hear me.

　 A.had to　 　　　　B.couldn’t　 　　　　　C.didn’t answer　 　　　D.did

66.Put on more clothes . You_____be feeling cold with only a shirt on.

　 A.would　　 　　　　 　　　　　　　C.could 　　　　　　　D.must

65.Tom ought not to_____me your secret ,but he meant no harm.

　 A.have told　 　　　　B.tell　 　　　　　　C.be telling　 　　　　D.having told

64.Sir,you_____be sitting in this waiting-room.It is for women and children only.

　 A.oughtn’t to　　 　　’t　　 　　　　　C.won’t　　 　　　　　D.don’t

63.You don’t______to go there if you have no time.

　 A.need　 　　　　　B.want　　 　　　　　C.must　 　　　　　　D.ought

62.There is plenty of time.She____.

　 A.must have hurried　　 B.needn’t have hurried　 C.must not hurry　　 D.couldn’t have hurried