______ to nuclear radiation, even for a short time, may influence genes in human bodies.

试卷相关题目

• 1---What can I help you, sir? --- I'd like to have this watch _______.

  A.to be repaired

  B.repair

  C.repairing

  D.repaired

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• 2 _____ from the top of the tower, the south foot of the mountain is a sea of trees.

  A.seen

  B.seeing

  C.Having seen

  D.To see

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• 3The design ________ all the ages and social groups is not easy to make.

  A.appealed to

  B.being appealed to

  C.to be appealed to

  D.appealing to

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• 4_____ so delicious, the food in this market was sold out soon.

  A.Tasting

  B.Tasted

  C.Being tasted

  D.Taste

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• 5While listening to the concert, the audience is required to remain ______ and keep quiet.

  A.seated

  B.to be seated

  C.seating

  D.to seat

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• 6He pretended __________when his mother stepped into the room..

  A.to study

  B.studying

  C.to be studying

  D.to have studied

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• 7_____ an important decision more on emotion than on reason, you will regret it sooner or later.

  A.Based

  B.Basing

  C.Base

  D.To base

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• 8While watching television,___________.

  A.the doorbell rang

  B.the doorbell rings

  C.we heard the doorbell ring

  D.we heard the doorbell rings

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• 9________in his test papers，he didn't notice my coming.

  A.Having absorbed

  B.Absorbed

  C.Absorbing

  D.To be absorbed

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• 10He seems to ________ Jane. He knows her well.

  A.introduce to

  B.be introducing to

  C.be introduced to

  D.have been introduced to

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