A lot of technical problems have to be solved ______ this new type of digital camera _______its appearance in market.      

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• 1The steel works in which David has worked for five years ________ us with raw material in large quantities in the past two years.

  A.has been supplying

  B.was supplying

  C.have been supplying

  D.were supplying

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• 2A quarrel as well as an argument _______ at such a kind of meeting.

  A.are allowed

  B.is allowed

  C.allows

  D.allow

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• 3The number of people present _______ sixty, but a larger number of people_______ coming here to get tickets for free.    

  A.is; are

  B.is; is

  C.are; are

  D.are; is

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• 4The father as well as his three children _____ skating on the frozen river every Sunday afternoon in winter.

  A.is going

  B.go

  C.goes

  D.are going

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• 5Books of this kind ____ well.

  A.sell

  B.sells

  C.are sold

  D.is sold

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• 6Children under sixteen are not permitted to participate in such kind of activities _____ bad for theirmental development.

  A.as is

  B.as are

  C.that are

  D.that they are

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• 7What the remote areas need ____ education to children  and what the children need ____ goodtextbooks and  teachers at the moment.    

  A.is; are

  B.are;is

  C.was;were

  D.were; was

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• 8The population, one third of which______ farmer workers, ______increasing very fast.

  A.is; are

  B.is; is

  C.are; is

  D.are; are

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• 9The number of foreign students attending Chinese universities  _____ increasing steadily since 1997.

  A.is

  B.are

  C.has been

  D.have been

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• 10All that can be eaten _______ eaten up.

  A.are being

  B.has been

  C.had been

  D.have been

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