_______cloning human embryos is not legal in many countries, some scientists are already pushing ahead with research in order to produce a cloned human baby.

试卷相关题目

• 1They had kept working for several weeks ______ everything was in order.

  A.before

  B.after

  C.since

  D.unless

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• 2I will keep on trying, ______ I might fail a thousand times.

  A.while

  B.as if

  C.even if

  D.otherwise

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• 3One Friday, we were packing to leave for a weekend away ______my daughter heard cries for help.

  A.after

  B.while

  C.since

  D.when

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• 4_______, and we will do the work better.

  A.Give us more time

  B.Given more time

  C.Giving us more time

  D.Having given us more time

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• 5Some teenagers turn a deaf ear to their parents' advice, _____ they know it does good to them.

  A.as though

  B.now that

  C.even though

  D.so that

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• 6I was excited ＿＿ I came to this school.

  A.for the first time

  B.the first time

  C.at first

  D.the first time when

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• 7_______you worked late yesterday, you need 't have come this morning.

  A.Unless

  B.Though

  C.Once

  D.As

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• 8The two men talked in a low voice, ____nobody heard what they were saying.

  A.so that

  B.as if

  C.because

  D.when

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• 9My point is that you must do ____________ is best for you.

  A.whatever

  B.however

  C.no matter what

  D.no matter how

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• 10Sarah hopes to become a friend of_______ shares her interests.

  A.anyone

  B.whomever

  C.whoever

  D.no matter who

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