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該;can’t不能;mustn’t不允許;needn’t不必。10.B解析:B【詳解】句意:——媽媽,為什么我進(jìn)超市前要戴口罩? ——為了你的健康和安全,你再小心也不為過。may可以,表請求或許可;need需要,指有必要;should應(yīng)該,表建議;must必須,強調(diào)主觀意愿。給你。9.A解析:A【詳解】句意:——我可以看你的身份證嗎?我們必須檢查一下你的個人信息。考查非謂語動詞及動詞的基本形式。根據(jù)“Today is the last day.”可知,必須今天完成,故選D??疾榍閼B(tài)動詞辨析。7.D解析:D【詳解】句意:——我們一定要今天完成嗎?——是的,你們必須。t沒必要。t不應(yīng)該;mustn39。can39。她正在開董事局會議。故選C。can可以;will將;should應(yīng)該;may可能。5.C解析:C【詳解】句意:你應(yīng)該小心你的相機。第一個空表示“應(yīng)該”,用should;第二個空表示能力,用can??疾榍閼B(tài)動詞。4.C解析:C【詳解】句意:我們青少年應(yīng)該有夢想。根據(jù)“I think they are enough. ”可知,第一處表示“不需要”,排除BD。因為將近四分之一需要修理。我們不需要做這么多椅子。故選B。shouldn’t不應(yīng)該;needn’t不必,不需要;couldn’t不可能;wouldn’t不會?,旣惤杞o了我們一些錢?!癱an’t be too +adj.”意為“再怎么樣也不為過”,結(jié)合語境,故選D。考查情態(tài)動詞。t C.can D.may23.We39。t20.You ________ require others to do with the problem like you. Everyone has his own way.A.mustn’t B.needn’t C.may not D.shouldn’t21.Look at the floor, Tom! ________ you watch TV while having a meal?A.Should B.Could C.Must D.May22.You _________ smoke here! Look at the sign. It says No smoking.A.needn39。t C.shouldn39。 to hold9.—________ I see your ID card? We have to check your personal information. —Sure. Here you are.A.May B.Need C.Should D.Must10.—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’t11.—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 not12.—There is a knock at the door.—It ________ be my mom. She always es back home at this time.A.may B.may not C.must D.can’t13.— Is Lang Lang going to perform at Art Center this Friday?— Yes. It ________ be him. He has been here for three days.A.might B.must C.mustn’t D.may14.I ________ hear you clearly. Would you please repeat it?A.mustn’t B.can’t C.needn’t D.shouldn’t15.You ______ pay too much attention to your pronunciation, as it is so important in the oral(口頭的) test.A.shouldn’t B.mustn’t C.can’t D.needn’t16.—Shall we go camping this summer holiday?—Nothing________be better.A.should B.could C.must D.may17.— Ready? Let’s get started, Martin.— Swimming? I just ________ hold C.gather。 has to5.You ________ be careful with the camera. It costs!A.can B.will C.should D.may6.—Who’s singing next door? Is it Miss Wang?—It ________ be her. She’s having the board meeting.A.can’t B.shouldn’t C.mustn’t D.needn’t7.—D