Teachers say the Internet has made _______ much easier to find and copy materials.

试卷相关题目

• 1Having never met with such a _____ problem, he felt _____ and didn't know how to solve it.

  A.puzzling; puzzled

  B.puzzled; puzzling

  C.puzzling; puzzling

  D.puzzled; puzzled

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• 2I was so familiar with her that I recognized her voice ________ I picked up the phone.

  A.the moment

  B.after

  C.before

  D.while

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• 3US President Barack Obama is expecting the economy to show some _________ of recovery．

  A.attempts

  B.signs

  C.contents

  D.waves

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• 4The old ________.

  A.have to take good care of

  B.was looked after very well

  C.have to be taken good care of

  D.were had to look after very well

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• 5The teacher tells his students to _______the dictionary for the new word.

  A.look up

  B.consult

  C.consult about

  D.look over

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• 6The research is so designed that once ________ nothing can be done to change it.

  A.begins

  B.having begun

  C.beginning

  D.begun

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• 7It s a good idea to get students to retell a story ______ their own words．

  A.of

  B.in

  C.by

  D.through

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• 8All the students ______ come from America are here.

  A.who

  B.which

  C./

  D.that

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• 9The fleet made several expeditions _______ the exploration was stopped.

  A.when

  B.before

  C.while

  D.since

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• 10Even though the pure water is _______ gives sea water its main properties, the salinity of sea water affects both its weight and freezing point.

  A.the one

  B.which

  C.what

  D.that

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