This nationwide smog should serve as a reminder to all, indicating a high time that we ______ on what we've done to the environment.

试卷相关题目

• 1--The mistake _____, I had been more careful. ---But you weren't at that time.

  A.might have avoided

  B.would avoid

  C.would be avoided

  D.might have been avoided

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• 2 The little child ________ go out alone at night, so he ________ walk in the dark that night.

  A.doesn't dare to; dared not to

  B.daren't to; didn't dare to

  C.daren't; dared not

  D.doesn't dare to; dare not

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• 3 I really don't know how to thank you, but for your help, I ________ my lost necklace.

  A.couldn't have found

  B.mustn't have found

  C.couldn't find

  D.wouldn't find

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• 4Attention, please. All of you students _______ remain in their seats until all the papers have been collected.

  A.can

  B.will

  C.may

  D.shall

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• 5Five minutes earlier, and we______the last bus.

  A.had caught

  B.should have caught

  C.could have caught

  D.caught

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• 6 —Why are your eyes so red? You ________ have slept well last night. —Yeah, I stayed up late writing a report.

  A.can't

  B.mustn't

  C.needn't

  D.won't

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• 7 —Did Ann fail in English? —She ________.Don't you notice that she looks depressed?

  A.might

  B.must

  C.may have

  D.could have

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• 8I ______ to my cousin 's birthday party last night, but I was not available.

  A.went

  B.had gone

  C.would go

  D.would have gone

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• 9If you ______to her about it yesterday, you ______ what to do now.

  A.should have spoken; would know

  B.spoke; would know

  C.had spoken; would have known

  D.had spoken; would know

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• 10Zhanglin was lost in computer games during his last year in high school, otherwise he _____ a student at Beijing University.

  A.would have been

  B.can be

  C.has been

  D.had been

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