外研版精品情态动词及练习一、选择题1．If you buy your mum an iRobot floor cleaner, she ________ sweep the floor every day.A．can’tB．mustn’tC．needn’tD．shouldn’t2．Don’t cross the road until the traffic lights turn green. A car_______hit you.A．needB．mayC．shouldD．must3．—Mum, why do I have to wear a mask before entering the supermarket?—For your health and safety, you ________ be too careful.A．shouldn’tB．can’tC．mustn’tD．needn’t4．—The high school entrance examination is coming!— Yes, our teacher tells us we ________ be too careful while taking exams.A．mustn’tB．shouldn’tC．needn’tD．can’t5．—There is a knock at the door.—It ________ be my mom. She always comes back home at this time.A．mayB．may notC．mustD．can’t6．—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．should7．—Dad, must we wait until the light becomes green? —Yes, I am afraid we ________. That’s the traffic rule.A．mayB．canC．have toD．need8．You ________ write the report again because spelling mistakes are not allowed at all.A．mustB．canC．mayD．could9．—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 not10．A lot of online resources ________ be used either by teachers at school or parents at home.A．canB．shouldC．needD．must11．—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’t12．—Have you decided to take up teaching as career after graduation? —I ________ go abroad for further education instead. But it depends.A．mustB．shouldC．mayD．s...
