30.   It was once called the Sea of Bamboo, but now only one fifth of the area ______ covered with bamboo, and sixty percent of other plants ______ taken the place of the bamboo.

试卷相关题目

• 1This pair of trousers ____ too long for him.

  A.is

  B.be

  C.are

  D.were

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• 2Mathematics ________ the language of science.

  A.are

  B.are going to be

  C.is

  D.is to be

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• 3A large number of students in our class ________ girls.

  A.are

  B.was

  C.is

  D.be

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• 4Every' boy and every girl ________ to attend the evening party.

  A.wish

  B.wishes

  C.is like

  D.like

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• 5Tom as well as two of his classmates _____invited to the party.

  A.was

  B.were

  C.have been

  D.had been

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• 621． More than one high official_____by the police since the mayor war shot dead.

  A.has been questioned

  B.have been questioned

  C.was questioned

  D.were questioned

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• 7Wisky and soda ______  his favorite drink.

  A.is

  B.are

  C.were

  D.have been

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• 8.  The surroundings of his house ______ clean now.

  A.is

  B.are

  C.was

  D.Were

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• 9. The manager or his assistant ______ planning to go.

  A.were

  B.are

  C.was

  D.Be

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• 10There ______ no water in the well.    

  A.has

  B.are

  C.is

  D.have

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