For many years, people _______ electric ears. However, making them has been more difficult than predicted.

试卷相关题目

• 1This kind of stone _____ cool in summer and warm in winter.

  A.is being felt

  B.is felt

  C.feels

  D.has been felt

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• 2一Mary，you look confused．Have you made sense of the passage we are talking about? 一Yes，I _____another problem just now.

  A.have thought of

  B.was thinking of

  C.thought of

  D.had thought of

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• 3No sooner ______ he arrived home than he ______ to start on another journey.

  A.has/was asked

  B.have/were asked

  C.had/is asked

  D.had/was asked

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• 4The car___much money.

  A.not cost

  B.not have cost

  C.isn't cost

  D.didn't cost

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• 5An expert, together with some scientists ______to help in the work.

  A.was sent

  B.were sent

  C.has sent

  D.have sent

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• 6. They gave us so warm a welcome that we were moved very much. It was a sight________ we_________.

  A.what;have never forgotten

  B.which; are never forgotten

  C.as ;will never forget

  D.that; would never forget

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• 7--Could you take a message for Mr. Green? ---Certainly. I _____ him about something at any case, so it______may other.

  A.may see; isn't

  B.see; won't be

  C.will see; isn't

  D.will be seeing; won't be

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• 8I did nothing wrong. Why are you always _________ me?

  A.turning up

  B.turning on

  C.bringing up

  D.bringing on

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• 9— Can you see what is written on that board? — Yes. It _______ “CAUTION: WET FLOOR”.

  A.reads

  B.is read

  C.writes

  D.is written

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• 10Anne________tomorrow.

  A.can sing

  B.can to sing

  C.is going sing

  D.going to sing

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