The scientists are now trying to discover what use could be ____ such material.

试卷相关题目

• 1Many people today ____ their eating habits ____ what they prefer to believe.

  A.are based; on

  B.base; on

  C.base: with

  D.are based; in

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• 2— What's the girl like? — She was a brave girl. She fought bravely and her enemy had to _____ her at last.

  A.give up

  B.give up to

  C.give in

  D.give in to

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• 3It's very difficult to satisfy the manager for he has already _____ three applicants this morning.

  A.turned away

  B.turned out

  C.turned to

  D.turned off

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• 4— What's the matter with Jane? She has been sitting there for hours. — A letter from her mother _____ an attack of homesickness in her.

  A.set out

  B.set off

  C.sent off

  D.sent up

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• 5The teacher was a little angry because the students didn't _____ their exercise books on time.

  A.hand out

  B.hand to

  C.hand in

  D.hand on

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• 6After class my friend, Jason, ____ different ball games at school.

  A.plays a part

  B.takes an active part in

  C.is actively in

  D.joins

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• 7We arranged to meet at 8:00, but she never ______.

  A.turned down

  B.turned off

  C.turned over

  D.turned up

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• 8He tried to deal with the ever-in- creasing burden of his work, but finally____ and had to take a complete rest.

  A.broke away

  B.broke up

  C.broke down

  D.broke out

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• 9They will be filled with excitement when they ____ on Chinese soil in late July.

  A.set foot

  B.set. out

  C.set forth

  D.set aside

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• 10Her parents had had a very anxious moment but everything ____ all right in the end.

  A.turned up

  B.carried out

  C.turned out

  D.carried away

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