【正文】
B.can’t C.mustn’t D.needn’t4.—The high school entrance examination is ing!— Yes, our teacher tells us we ________ be too careful while taking exams.A.mustn’t B.shouldn’t C.needn’t D.can’t5.Our Chemistry teacher always tells us we ________ be too hardworking before the exams.A.mustn’t B.shouldn’t C.needn’t D.can’t6.—Dad, must we wait until the light bees green? —Yes, I am afraid we ________. That’s the traffic rule.A.may B.can C.have to D.need7.— ________ you give me a hand? I can’t put up the poster by myself.—No problem.A.Could B.Should C.Need D.Must8.You ________ write the report again because spelling mistakes are not allowed at all.A.must B.can C.may D.could9.— Excuse me, could you tell me where the Nanjing Brocade Museum is?— Go along this road for five minutes. You ________ miss it. It’s a huge building.A.mustn’t B.can’t C.needn’t D.shouldn’t10.I ________ hear you clearly. Would you please repeat it?A.mustn’t B.can’t C.needn’t D.shouldn’t11.Hurry up, or we ________ miss the beginning of the film.A.should B.must C.may D.have to12.If you buy your mum an iRobot floor cleaner, she ________ sweep the floor every day.A.can’t B.mustn’t C.needn’t D.shouldn’t13.— Zoe, what do you think is the greatest advantage of shopping online?— At least I ______ spend much time going from shop to shop.A.shouldn’t B.can’t C.needn’t D.mustn’t14.The boy is very brave.I ________ he ________ the tall tree.A.dare say。 dares to climbB.dare to say。 dares climbD.dare to say。 be against B.be paid attention。 against D.be paid attention to。ve discussed every detail of this plan and have got everything ready. But still something ________ go wrong. We still have to be very careful.A.must B.should C.would D.may26.—Suzy described every detail of the accident just now.—Her memory ________ be pletely back.A.shall B.need C.must D.could27.Never throw objects from the building. Even a small object ________ cause serious injuries, or death, when dropped from a great height.A.must B.should C.may D.need28.—Will Jim e to Yangzhou for a holiday?—He ________e and it depends on how much homework he will have.A.may B.should C.must D.need29.— Why didn’t you tell it to me earlier?— Why ________ I? I want to have my own secret.A.can B.may C.should D.shall30.—Could you tell me how to renew the library books?—With pleasure. You ________ e to our desk every time. It’s easier to renew them online.A.can’t B.mustn’t C.needn’t D.shouldn’t31.A hardworking man ________ bee a great scientist, but a great scientist ________ be a