There______ a trend that 3D films will become more popular ever since the film Avatar hit the market．

试卷相关题目

• 1He ____ busy then; otherwise, I believe, he would have given you a hand．

  A.had been

  B.were

  C.must be

  D.was

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• 2In order to stop poverty, the World Bank has ______ its focus to providing technical assistance and long-term loans to developing countries.

  A.fixed

  B.exchanged

  C.transferred

  D.switched

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• 3Explorer Robert Ballard searched the sunken ship---the Titanic for more than 20 years and also, with his cameras, he _____ the hole along the side of the ship which had caused it to fill with water and sink.

  A.could find

  B.managed finding

  C.succeeded to find

  D.was able to find

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• 423. The writing brushes ____ bamboo and animal's hair.

  A.are made of

  B.is made from

  C.is made of

  D.are made up

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• 5Measures have been taken to prevent accidents, but much ______ for more improvement.

  A.remains to be done

  B.is remained to do

  C.remains to do

  D.is remained to be done

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