There's no way of knowing why one man makes an important discovery________another man，also intelligent，fails.

试卷相关题目

• 1The baby, ________health was ruined after taking the medicine, was only one year old.

  A.which

  B.whose

  C.who

  D.whom

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• 2After the terrible accident, it took her nearly 3 years _______ she completely recovered.

  A.since

  B.after

  C.before

  D.that

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• 3The boys enjoy playing basketball __________ many of the girls relax by playing ping-pong.

  A.while

  B.or

  C.since

  D.if

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• 4He is so busy.He cannot afford enough time with his son________he wants to.

  A.even if

  B.as if

  C.because

  D.before

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• 5You have failed two tests. You'd better start working harder, ____ you won't pass the course.

  A.and

  B.so

  C.but

  D.or

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• 6The policy of the mainland is very clear and  straightforward，and the key problem is_____the  leaders of Taiwan will accept it.

  A.that

  B.how

  C.why

  D.whether

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• 7This is a kind of effective classroom teaching ______ students learn independently and cooperatively.

  A.where

  B.which

  C.what

  D.when

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• 8You must learn to consult your feelings and your reason________you reach any decision.

  A.although

  B.before

  C.because

  D.unless

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• 9---May I borrow your book Steve Jobs ? --- ________ you return it before Friday.

  A.If only

  B.Unless

  C.On condition that

  D.Now that

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• 10Along with the letter was his promise ________ he would visit me the New Year.

  A.which

  B.that

  C.what

  D.whether

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