---- May we leave the classroom now? ---- No, you _____. You _____ to leave unti
题型：不详难度：来源：
---- May we leave the classroom now?
---- No, you _____. You _____ to leave until the bell rings.| A．mustn’t, are allowed | B．can’t, aren’t supposed | | C．don’t have to, are supposed | D．needn’t, aren’t allowed |
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答案
| B |
解析
| 考查情景交际和情态动词。“我们现在可以离开教室了吗？”“不，你们不可以。你们不能离开，在铃声响起之前。”can’t表示允许，“不可以”；needn’t“不必”；be supposed to do sth.“应该做某事”。故选B。 |
举一反三
Unluckily, my grandma fell downstairs and her legs were badly _______. | A． hurt | B．hurted | C．hit | D． hurting |
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— Your classroom looks bright and tidy.
— It after school every day.| A．cleans | B．cleaned | C．is cleaned | D．was cleaned |
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— I didn’t see you at Kangkang’s birthday party.
— I didn’t go because I _____ .
A. invited B. wasn’t invited C. didn’t invite |
Zhengzhou will be more and more convenient when Zhengzhou Subway_____ in two years.| A．is completed | B．will be completed | C．will complete | D．has completed |
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--What happened in that store?
-- A thief _____ by the policeman just now.| A．is caught | B．caught | C．has caught | D．was caught |
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