Air and the sun's rays create much distortion, and whatever tends to _____ their influence is useful to the astronomer.

试卷相关题目

• 1—Will $200 ____ the cost of the damage? —I'm afraid not. I need at least $100 more.

  A.do

  B.include

  C.cover

  D.afford

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• 2Magnificent views over the countryside have often _____ people to write poems.

  A.convinced

  B.inspired

  C.induced

  D.attracted

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• 3The Great Wall was built to keep ______  the invaders.

  A.in

  B.out

  C.up

  D.off

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• 4Experts say walking is one of the best ways for a person to _____ healthy.

  A.preserve

  B.stay

  C.maintain

  D.reserve

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• 5I'm terribly sorry to turn you down this time, but I promise I will ________ to you next time.

  A.pick it up

  B.make it up

  C.turn it up

  D.set it up

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• 6The teacher's eyes, without any expression, _____ the boy who made faces.  

  A.watched

  B.stared at

  C.glared at

  D.were fixed upon

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• 7The guard____old man to pass after he showed him the pass.  

  A.promised

  B.agreed

  C.let

  D.permitted

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• 8Darkness _____, so we had to stop our journey and stayed on a farm for the night.

  A.happened

  B.spread

  C.broke

  D.fell

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• 9If the new arrangement doesn't _____, we'll go back to the old one.

  A.work over

  B.work out

  C.work up

  D.work down

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• 10He was in great need of money, so he___ $8, 000 for his car.　

  A.paid

  B.took

  C.cost

  D.spent

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