Do you know the stages every inventor must ________ before they can have their invention________ .

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• 1He came to my lecture every week, but his look  ________  that he was not really interested.

  A.expresses

  B.described

  C.explained

  D.suggested

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• 2We all feel it is Jack as well as his wife that ______ for their son's bad performance at school.

  A.are to blame

  B.is to be blamed

  C.are to be blamed

  D.is to blame

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• 3Although all of the apples ________, none of them ________ good.

  A.have been tasted; taste

  B.have been tasted; are tasted

  C.have tasted; taste

  D.have tasted; are tasted

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• 4We have already said a good deal about the various problems _______ the war.

  A.trying out

  B.dating back to

  C.appealing to

  D.relating to

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• 5Maggie's house is next to mine. We see each other _________.

  A.a number of

  B.a lot of.

  C.a great deal

  D.a great many

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• 6With so many people __________ in English every day, it will become more and more important to have a good ___________ of English.

  A.communicate, knowing

  B.communicated, knowledge

  C.communicated, knowing

  D.communicating, knowledge

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• 7The party was meant to be a surprise to everyone who would take part, but one of the organizers _______ the plan．

  A.gave away

  B.gave out

  C.gave up

  D.gave back

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• 8I regret _____ you that my sister regretted _____ out with you. You are not the kind of person she wants.

  A.telling; going

  B.to tell; to go

  C.telling; to go

  D.to tell; going

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• 9He acknowledged _______the book from my bag.

  A.to steal

  B.stealing

  C.steal

  D.stolen

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• 10They were lost at sea, _______ the mercy of wind and weather.

  A.on

  B.at

  C.in

  D.by

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