—When did he leave the classroom? —He left ________ you turned back to write on the blackboard.

试卷相关题目

• 1_______ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.  

  A.Even if

  B.As far as

  C.If only

  D.So long as

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• 2It' s too late to go out now. _____, it's starting to rain.

  A.Besides

  B.Meanwhile

  C.However

  D.Anyhow

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• 3That's the woman one of __________ daughters works as an engineer in the US.

  A.who

  B.whom

  C.her

  D.Whose

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• 4Men do not kiss each other_______ in China ______ in English-speaking countries.

  A.neither, or

  B.neither, nor

  C.either, or

  D.either, nor

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• 5We'll have a picnic in the park this Sunday _____ it rains or it's very cold.

  A.since

  B.if

  C.unless

  D.until

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• 6He didn't realize he had forgot his bag _____ the plane had taken off.

  A.unless

  B.until

  C.if

  D.or

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• 7________ the whole society care for children as well as their parents, children can grow healthily and happily

  A.As soon as

  B.Once

  C.The moment

  D.So long as

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• 8My parents don't mind what job I do ________I am happy.

  A.even though

  B.as long as

  C.as soon as

  D.as though

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• 9On stepping into the room this morning I was astonished to find the floor covered with______ looked like tiny insects.

  A.that

  B.something

  C.what

  D.anything

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• 10They were still working in the fields ______ it had got dark.

  A.even if

  B.as if

  C.in so far as

  D.so that

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