Even a drop of water ______because it is so important to all the living things.A

Even a drop of water ______because it is so important to all the living things.A

题型:不详难度:来源:
Even a drop of water ______because it is so important to all the living things.
A.must wasteB.must be wasted
C.mustn’t wasteD.mustn’t be wasted

答案
D
解析

这题考查情态动词的被动语态的用法,“情态动词+be+done”,句意是:一滴水都不能浪费,因为它对每个生物都是有用的,注意用否定式。
举一反三
We spend as much time as we can _____English.
A. read     B. to read     C. reading
题型:不详难度:| 查看答案
— ____ we go to help him with his work?
—No, you needn’t.  He ____ finish it all by himself.
A.  Must; can’t    B.  May; can     C.  Must; can
题型:不详难度:| 查看答案
—Have you decided where to spend your summer holiday?
—Not yet. We ___ go to Hong Kong.
A.mayB.mustC.shouldD.need

题型:不详难度:| 查看答案
读音选词 根据所给句意和音标,从每题A、B、C、D四个选项中,选出一个最佳答案。
小题1:There will be heavy rain and strong wind next ___________. / wi:k /
A.weekB.waitC.westD.weak
小题2:How often do you exercise? I exercise ______________/ w?ns/ a day.
A.wonB.onceC.winD.one
小题3:The library is on the left ____________  /sa?d / of the bank.
A.saidB.sendC.sadD.side
小题4:You’ll _____________ /feil/ in the final exam if you don’t work harder.
A.feelB.fellC.failD.fill
小题5:If I had one million dollars, I’d give it away to ______________/′medik?l/ research.
A.medicineB.medicalC.magazineD.metal

题型:不详难度:| 查看答案
He __________ be at home now because I saw him in the office just now.
A.can’tB.mustn’tC.mayD.must

题型:不详难度:| 查看答案
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