—Those scientists invented a robot to care for kids!—It's not surprising. They ________ wonders all the time.

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• 1— What's the matter with Andy ? He doesn't look very well.  — He has a headache because he ______ too long; he ought to have stopped reading.

  A.had read

  B.is reading

  C.was reading

  D.has been reading

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• 2We should go out and stretch our legs. We ____ all day.      

  A.had sat

  B.have been sitting

  C.have sat

  D.was sitting

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• 3-Haven't seen you for ages, Tom! How's everything?-All goes well！I ________ in a bank since leaving school.

  A.work

  B.have worked

  C.am working

  D.have been working

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• 4— How long ______ like this?    — For nearly a week.    

  A.did it rain

  B.has it rained

  C.does it rain

  D.has it been raining

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• 5— I'm sure Andrew will come out first in this gymnastic competition.— I think so. He ________ for it for months.

  A.is preparing

  B.was preparing

  C.had been preparing

  D.has been preparing

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• 6— Mum, I have got a headache.— You’d better go out and take a walk. You       in front of the TV too long. 

  A.have been sitting

  B.are sitting

  C.sit

  D.sat

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• 7The secretary________letters all the afternoon and there are still two letters to finish.

  A.is typing

  B.had type

  C.has been typed

  D.has been typing

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• 8Liu Fang ______ pipa since she was six years old.

  A.played

  B.was playing

  C.had been playing

  D.has been playing

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• 9The Chinese government _____ research into vaccine against H1N1for months, recently many have received the first doses.

  A.is doing

  B.has done

  C.had been doing

  D.did

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• 10When I met Becky, she told me that she ______ for an interview the next day.

  A.would go

  B.has gone

  C.went

  D.had gone

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