_____earth scientists understand how and why earthquakes happen, forecasts are usually inaccurate.

试卷相关题目

• 1Jenny was very sad over the loss of the photos she had shot at Canada,______ this was a memory she especially treasured.         

  A.when

  B.where

  C.as

  D.if

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• 2—Why  didn't  you  tell  him  about the meeting?—He rushed out of the room ______ I could say a word.

  A.before

  B.until

  C.when

  D.after

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• 3_____ he is the son of' the boss, he started from the lowest position as a common employee.

  A.Unless

  B.Since

  C.While

  D.As

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• 4_____ teaching in a university, he also spent some time teaching in a night school.

  A.Besides

  B.Except

  C.Except for

  D.Except that

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• 5- How long is it ______ you picked up your badminton training?   - It was not until my finance became better in last December ______ I started the training.   

  A.before; when

  B.until; that

  C.that; when

  D.since; that

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• 6________ everyone else wouldn't go to the mountain area, he went without a second thought.

  A.As long as

  B.While

  C.WhereD.In spite of

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• 7_____ she was no more than twenty-two, she was already a highly successful business- woman.

  A.Though

  B.Once

  C.Because

  D.Since

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• 8—Have you told Joan the bad news that her grandfather fell off the bike and hurt seriously?—Yes. I told her ________I saw her this afternoon.

  A.while

  B.the moment

  C.until

  D.suddenly

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• 9Animals suffered at the hands of Man _______they were destroyed by people to make way for agricultural land to provide food for more people.

  A.in which

  B.for which

  C.so that

  D.in that

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• 10— How long do you think it is _______ he took up the job?— Half a year at least.

  A.when

  B.before

  C.that

  D.since

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