从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。 1.Are you in a hurry？ No， in fact Ive got plenty of time. I _ wait. A.must B.need C.may D.should 2.Someone is knocking at the door. _ it be Venis？ No， it _ be her； she left for New York this morning. A.Can； mustnt B.Might； cant C.May； doesnt D.Can； cant 3.He didnt agree with me at first， but I _ persuade him to sign the agreement later. A.could B.might C.should D.was able to 4.Is there a movie on in the cinema tonight？ There_ be. I will phone the cinema and find it out. A.might B.should C.can D.could 5.You _ be careful when you cross here the traffic lights arent working. A.can B.ought to C.might D.may 6.You _ out last night. I called you several times， but nobody answered. A.must have been B.must be C.might have been D.could be 7.You _ fail to pass the entrance examination if you dont study harder. A.shall B.could C.must D.should 8.When I was studying at Beijing University， I _ take a walk along the lake every evening. A.will B.would C.could D.shall 9.The party turned out to be a failure. I would rather _ it. A.not have attended B.not attend C.not to attend D.not to have attended 10.Sir， you _ be sitting in this seat. It is for women or children only. A.cant B.oughtnt to C.wont D.neednt 11.Shall I tell Li Ming about the matter？ No， you _ . He has known about it already. A.oughtnt to B.neednt C.shouldnt D.mustnt 12.Must I take a bus？ No， you _ . You can walk there. A.must not B.dont C.dont have to D.had better not to 13.Why do you make me do so？ I am sorry that you _ do such a thing. A.would B.can C.should D.may 14.Will you stay for lunch？ Sorry， I _ . My brother is coming to see me. A.mustnt B.cant C.neednt D.wont 15.What would have happened _ ， as far as the riverbank？ A.if Bob has walked farther B.if Bob should walk farther C.had Bob walked farther D.should Bob walk farther 16.Oh， Jane， youve broken another glass. You ought _ when you washed it. A.be careful B.to care C.have cared D.to have been careful 17.Its high time we _ to the theater. A.will go B.shall go C.are going to D.went 18.Could I use your telephone？ Yes， of course you _ . A.could B.will C.can D.might 19.Its strange that they _ nothing about this matter. A.should know B.would know C.had known D.knew 20.Do you still remember the day when we went to the Great Wall？ I cant remember it well， but _ sometime last autumn？ A.might it be B.could it have been C.could it be D.must it have been 21.I cant get through to the general managers office anyhow. The line is busy. Someone _ the telephone. A.must use B.uses C.must have been using D.must be using 22.He suggests we _ to the cinema at once， otherwise we will be late. A.must go B.go C.will go D.would go 23.If only he _ me yesterday! A.had seen B.would see C.should see D.saw 24.If you _ wait a moment， Ill go and find our manager. A.can B.should C.will D.must 25.It is rather cold here. Shall we light a fire？ No， we _ because things are easy to catch fire. A.wont B.cant C.mustnt D.neednt 26.If I _ you， I _ more attention to English idioms and phrases. A.was； shall pay B.am； will pay C.would be； would pay D.were； would pay 27.Would you have told him the answer had it been possible？ I would have， but I _ so busy then. A.had been B.were C.was D.would be 28.Can children swim in this pool？ Yes. However， at no time _ they do so by themselves. A.dare B.should C.need D.could 29.Kunming is called“Spring City”，but it _ snow in winter. A.shall B.can C.must D.might 30.Whats the matter wi