_____the cause of the oil leaks, the specialists can not draw a conclusion before completing a thorough and detailed investigation.

试卷相关题目

• 1He convinced me __________the difficulty of the work.

  A.on

  B.at

  C.for

  D.of

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• 2Normally, students will be given a certificate ______completion of the course.

  A.on

  B.with

  C.to

  D.in

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• 3She's aiming ________ a scholarship. That is why she has been focusing her mind ________ her work.

  A.at; on

  B.to; on

  C.for; in

  D.at; into

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• 4So far we have done a lot to build a low-carbon economy, yet it is still _________ ideal. We have to work even harder.

  A.far from

  B.next to

  C.out of

  D.due to

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• 5Taking care of children calls for your time, abilities, patience and emotions. _____, it is not a simple thing.

  A.On the contrary

  B.What's more

  C.In conclusion

  D.On the other hand

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• 6I guess we've already talked about this before but I'll ask you again just _______.

  A.by nature

  B.in return

  C.in case

  D.by chance

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• 7---Let's have a further talk. ---Sorry, I don't have time. My report is due on Friday and I am in a race ________ time.

  A.over

  B.in

  C.on

  D.against

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• 8— Let's have an outing tomorrow. — Sorry. The final exam is drawing near and I am in a race _____ time.

  A.over

  B.in

  C.against

  D.on

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• 9Mr Harris apologized ______ the children ______ the lady ______ what they had done.

  A.for; to; to

  B.to; to; for

  C.for; to; for

  D.to; for; for

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• 10As a good speaker, it is important that you get your message ______ to listeners.

  A.through

  B.across

  C.toward

  D.forward

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