It is difficult for us to explain phenomena that we have little or __________direct knowledge.

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• 1No sooner had I closed the door than somebody started knocking __________it.

  A.on

  B.with

  C.to

  D.for

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• 2As we know, physics __________the science of energy.

  A.was

  B.were

  C.is

  D.are

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• 3These courses, if properly conducted, will________the minds of the students.

  A.refresh

  B.renew

  C.Stimulate

  D.encourage

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• 4The train __________ of the station right on time.

  A.pulled

  B.pulled down

  C.pulled on

  D.pulled out

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• 5He is very__________ in using money.

  A.economic

  B.economical

  C.economy

  D.economize

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• 6We substitute fish ______ meat several times a week.

  A.for

  B.to

  C.with

  D.and

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• 7It was not________1957 that he went back to America.

  A.Since

  B.until

  C.Before

  D.after

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• 8Your comments ________my work have proved to be helpful.

  A.in

  B.for

  C.on

  D.against

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• 9Traditionally,universities have carried out two main activities: research and teaching. Many experts

  A.traditional universities do a good job serving the society

  B.universities must meet the needs of the society

  C.research and teaching are of great importance inuniversities

  D.universities play an important role in our society

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• 10The Aristotle example is used to make the point that________

  A.universities in the UK have produced too much good forgraduates

  B.such abstract subjects as philosophy is no longer useful

  C.education should serve the social needs

  D.it is advisable for today’s philosophers to know computerscience

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