______ she couldn't understand was ________ fewer and fewer students showed interest in her lessons.

试卷相关题目

• 1A small car is big for family of three_______ you need more space for luggage.

  A.once

  B.because

  C.if

  D.unless

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• 2I was just about to go to bed last night ______ the telephone rang.

  A.while

  B.when

  C.as

  D.before

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• 3A total of 548 students fell ill ______ consuming milk and biscuits in schools in Northwest China's Qinghai province on Wednesday, local authorities said.

  A.before

  B.when

  C.after

  D.while

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• 4How can they learn anything ______ they spend all their spare time watching television?

  A.when

  B.though

  C.while

  D.before

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• 5Most disaster experts believe there is the potential ______ things could get a lot worse.

  A.what

  B.where

  C.which

  D.that

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