One of the methods of introducing foreign genes into a plant is to make use of certain soil bacteria to infect the plant and transfer several of blue genes to the infected plant cells, _____ in high rate of plant cell pision.

试卷相关题目

• 1People often want to know what my job is．Often I＿＿＿ that question．

  A.ask

  B.am asking

  C.get asked

  D.get asking

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• 2John got the first prize in the speech competition, and he was so excited _____us ______theatre.

  A.to treat; to

  B.that he treats; to

  C.as to treat; for

  D.as to treat; to

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• 3The meeting ______ over, I found her ______ at the desk and ______ to the music.

  A.to be; sitting; listened

  B.is; sitting; listened

  C.was; seating; listening

  D.being; seated; listening

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• 4People sell their products ________advertisement in the newspaper.

  A.by putting an

  B.to put an

  C.by putting a

  D.putting an

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• 5He does nothing but ____all the time . How can he do his work well?

  A.to have complained

  B.complains

  C.complain

  D.complaining

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• 6  The children had _____basketball.

  A.a great fun playing

  B.great fun playing

  C.great fun to play

  D.a great funny playing

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• 7We haven't decided which hotel ____.

  A.to stay at

  B.to stay

  C.is for staying

  D.is to stay at

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• 8  I am bad ______names.

  A.in

  B.in remembering

  C.to remember

  D.at remembering

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• 9He was disappointed to find his suggestions ____.

  A.been turned down

  B.turned down

  C.to be turned down

  D.to turn down

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• 10—How do you deal with the disagreement between the company and the customers? —The key ___ the problem is to meet the demand ____ by the customers.

  A.to solving; making

  B.to solving; made

  C.to solve; making

  D.to solve; made

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