【正文】
he _______go to the countryside to see my grandparents.A.must B.may C.can D.would20.— Mom, must I clean my room now?— No, you ________. You can do it after dinner.A.needn’t B.mustn’t C.shouldn’t D.can’t21.—In China, many students have to stay up late to do their homework.—No worries. The government has realized the problem. I’m sure there ________ be good news soon.A.can B.should C.must D.need22.—Must I finish all my homework today, Mum?—No, you ________, my dear. You can finish some tomorrow if you like.A.needn’t B.shouldn’t C.can’t D.mustn’t23.—Suzy described every detail of the accident just now.—Her memory ________ be pletely back.A.shall B.need C.must D.could24.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.need25.Most young people like shopping online because they ________ spend much time going from shop to shop.A.needn’t B.can’t C.mustn’t D.shouldn’t26.I think all the students love the weekends because, to them, they ________ get up early on Saturdays or Sundays.A.mustn’t B.don’t need C.needn’t D.can’t27.—Is it usually warm in Yancheng in May??—Yes. But it _______ be rather cold sometimes.A.must B.should C.would D.can28.Sometimes smiles ________ be false, hiding other feelings like anger, fear or worry.A.should B.would C.must D.can29.—Be careful! Fire ________ be dangerous sometimes. —OK. I will put it out right away.A.mustn’t B.should C.can D.needn’t30.—How beautiful the winter jasmines (迎春花) are!—Yes. These goldenyellow flowers ________ be widely seen in my city in March.A.must B.can C.would D.should31.— Listen! Tom ________ be listening to the music while doing his homework.— Let’s go upstairs to remind him to turn it off.A.should B.could C.would D.must32.—May I have some wine to drink?—No, you ________. You have to drive home later.A.mustn’t B.needn’t C.can’t D.may not33.—I don’t care what people think.—Well, you _______ . Some opinions are worth weighing.A.should B.might C.could D.would34.You ________ drive after drinking alcohol(酒). It’s against the law.A.mustn’t B.needn’t C.couldn’t D.wouldn’t35.—I think they are enough. We ________ make so many chairs.—I don’t think so. Because nearly a quarter of them need ________.A.don’t need to。 to mend36.You ________ be careful with the camera. It costs!A.can