New technology ______ to make sure that the cars, taxis, buses and trains we use ______ the air.

试卷相关题目

• 1Ladies and gentlemen, please fasten your seat belts. The plane _______.

  A.takes off

  B.is taking off

  C.has taken off

  D.took off

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• 2—— Are you a visitor here? —— That's right.I＿＿＿round the world and now my dream of coming to China＿＿＿true.

  A.have traveled； has come

  B.was traveling； had been come

  C.am traveling； has come

  D.have traveled； has been come

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• 3——Where do you think＿＿＿＿＿he＿＿＿＿the computer? —— Sorry.I have no ide

  A.A.has ； bought

  B.／； bought

  C.did ； buy

  D.had ； bought

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• 4—Did Alan enjoy seeing his old friends yesterday? —Yes, he did. He ________ his old friends for a long time.

  A.didn't see

  B.wouldn't see

  C.hasn't seen

  D.hadn't seen

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• 5—Why did you come by bus? —My car broke down yesterday evening and I ________ it repaired.

  A.didn't have

  B.don't have

  C.won't have

  D.haven't had

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• 6Good heavens! There you are! We _____ anxious about you, and we _____ you back throughout the night.

  A.are; expect

  B.were; had expected

  C.have been; were expecting

  D.are; were expecting

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• 7Is there any possible way to help them get rid of such a bad habit? --- To tell the truth, it's very hard. But we    on this problem trying to improve the situation.

  A.worked

  B.had worked

  C.are working

  D.had been working

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• 8Computer cannot remember who _______; it simply does what _______.

  A.has used it; it is told

  B.will used it; it was told

  C.uses it; it has told

  D.has used it; it told

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• 9The plane ＿＿＿＿＿ at 7：00 p.m., so I have to be at the airport by 6：40 at the latest.

  A.has left

  B.is to leave

  C.will have left

  D.leaves

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• 10-Have you got your test result?　-Not yet. The papers _____.

  A.are still being corrected 　

  B.are not correcting

  C.have already been corrected

  D.have not corrected

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