情态动词的概念和用法一、选择题1.We shouldn’t throw any objects from the building. Even a small object ________ cause serious injuries or death, when dropped from a great height.A.mustB.shouldC.mayD.need2.Dr. Zhong Nanshan once said, "To prevent the spread of this disease, we________never be too careful."A.canB.mayC.mustD.should3.—Do we have to finish this today?—Yes, you ________ . Today is the last day.A.wouldB.mayC.canD.must4.To avoid ________, we’d better ________ the parents’ meeting online.A.gather; holdB.gathering; holdC.gather; holdingD.to gather; to hold5.Hurry up, or we ________ miss the beginning of the film.A.shouldB.mustC.mayD.have to6.—I must go to school today, ________?—No, you ________.You can go as soon as you get well.A.mustn’t I;needn’tB.needn’t I;needn’tC.mustn’t I;mustn’tD.needn’t I;mustn’t7.—Must the children leave at six tomorrow morning?—No, they _______. They can have more time to get ready for the trip.A.can’tB.needn’tC.mustn’tD.may not8.— Why didn’t you tell it to me earlier?— Why ________ I? I want to have my own secret.A.canB.mayC.shouldD.shall9.—Who’s singing next door? Is it Miss Wang?—It ________ be her. She’s having the board meeting.A.can’tB.shouldn’tC.mustn’tD.needn’t10.—Will my car be ready by the end of the day?—It ________ be, sir. I’ll call if there’s any problem.A.mustB.couldC.shallD.should11.You ________ be careful with the camera. It costs!A.canB.willC.shouldD.may12.Exercise is helpful but it ________ be regular (规律的) exercise.A.mustB.mayC.canD.need13.You'd better __________ hard from now on, __________ you will fail the exam.A.work; andB.working; orC.working; andD.work; or14.—Where is Tom? I am considering _____...