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 waste | B．must be wasted | | C．mustn’t waste | D．mustn’t be wasted |
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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 |
— ____ 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 |
—Have you decided where to spend your summer holiday?
—Not yet. We ___ go to Hong Kong.| A．may | B．must | C．should | D．need |
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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 /小题2:How often do you exercise? I exercise ______________/ w?ns/ a day.小题3:The library is on the left ____________ /sa?d / of the bank.小题4:You’ll _____________ /feil/ in the final exam if you don’t work harder.小题5:If I had one million dollars, I’d give it away to ______________/′medik?l/ research.| A．medicine | B．medical | C．magazine | D．metal |
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He __________ be at home now because I saw him in the office just now.| A．can’t | B．mustn’t | C．may | D．must |
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