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19.—Shall we go camping this summer holiday?—Nothing________be better.A.should B.could C.must D.may20.— ________ you give me a hand? I can’t put up the poster by myself.—No problem.A.Could B.Should C.Need D.Must21.—The article says that a person’s animal sign decides his personality.—You ________ read it for fun, but don’t believe in that.A.can B.must C.shouldn’t D.needn’t22.—Is that Mr Zhou?—It ________ be him. He has gone to Beijing.A.can B.may C.can’t D.shouldn’t23.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.need24.—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.need25.—In China, many parents plain that their children have to stay up late to do the homework. —Don’t worry. The government has realized the problem. I’m sure there ________ be good news soon.A.can B.should C.need D.must26.When people are waiting at the zebra crossing, cars and buses ________ wait and let them go first.A.must B.may C.can D.need27.Cars ________ give way to walkers on some roads in Binhai, or the drivers will be fined.A.may B.will C.can D.must28.Sometimes smiles ________ be false, hiding other feelings like anger, fear or worry.A.should B.would C.must D.can29.—Mum, why do I have to wear a mask before entering the supermarket?—For your health and safety, you ________ be too careful.A.shouldn’t B.can’t C.mustn’t D.needn’t30.For the safety of the passengers, objects like guns ________ be carried on board.A.may not B.needn’t C.might not D.mustn’t31.According to the rule, used batteries ________ be dropped in the red bin for harmful wastes.A.may B.would C.should D.might32.—Mum, I bought some strawberries on my way home.—Oh, you’re so sweet. But the strawberries ________ be put into the fridge for freshness.A.must B.can C.may D.need33.— What do you think of the show yesterday?— Some of them were really good but others ________ be better.A.will B.must C.need D.can34.—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 not35.—________ I see your ID card? We have to check your personal information. —Sure. Here you are.A.May B.Need C.Should D.Must36.We teenagers ________ have dreams. With dreams and hard work, anything amazing ________ be created.A.may。 can B.might。 should C.should。 can D.must。 has to37.—Who’s singing next door?