Scientists say it may be five or six years _______ it is possible to test this medicine on human patients.

试卷相关题目

• 1There were dirty marks on her trousers _______ she had wiped her hands.

  A.where

  B.which

  C.when

  D.that

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• 2Simon thought his computer was broken _______ his little brother pointed out that he had forgotten to turn it on.

  A.until

  B.since

  C.after

  D.because

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• 3The shop doesn't open__________11

  A.m.A.for

  B.or

  C.but

  D.until

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• 4—The experiment is of particular importance. 　　　　—I see. We will carry on with it ________ we can get enough money.

  A.unless

  B.though

  C.whether

  D.until

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• 5__________I can see，there is only one possible way to keep away from the danger.

  A.As long as

  B.As far as

  C.Just as

  D.Even if

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• 6The idea has been widely accepted______Beijing Opera should be added to the basic education in Chin

  A.A.which

  B.when

  C.that

  D./

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• 7Wilma became the first American woman to win three Olympic gold medals in track, ________ made her mother very proud.

  A.it

  B.that

  C.which

  D.this

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• 8______ I saw Jane，she was picking cotton in the field.

  A.For the first time

  B.At the first time

  C.By the first time

  D.The first time

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• 9This is Mr. White, _______ I think has something interesting to tell you.

  A.which

  B.whom

  C.that

  D.who

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• 10—Why does she always ask you for help? —There is no one else _______, is there?

  A.who to turn to　

  B.she can turn to　

  C.for whom to turn

  D.for her to turn

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