In order to jump, your body changes the chemical energy ________ in the food you have eaten into mechanical energy.

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• 1Our waste recycling project ________ a lot of investigation and paperwork had been done by the end of last term.

  A.involved

  B.to involve

  C.being involved

  D.involving

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• 2________ with conducting an interview by QQ online, a facetoface interview in person can provide people with more reliable details.

  A.Comparing

  B.Compared

  C.To compare

  D.Compare

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• 3We tried ________ the window, but it was still hot in the room.

  A.to open

  B.opening

  C.open

  D.opened

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• 4—Can you come up with another good idea? —This is the best approach I can imagine ________ the work ahead of schedule.

  A.to accomplish

  B.to accomplishing

  C.accomplishing

  D.accomplished

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• 5Our director is out. I'll have her ________ you on the matter when she's back.

  A.to contact

  B.contacting

  C.contact

  D.contacted

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• 6Lionel Messi，________the record for the most goals in a calendar year，is considered the most talented football player in Europe.                                  (2013·江苏，24)

  A.set

  B.setting

  C.to set

  D.having set

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• 7The driver wanted to park his car near the roadside but was asked by the police______. (2013·新课标全国Ⅰ，28)

  A.not to do

  B.not to

  C.not do

  D.do not

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• 8________ all the homework assigned by the school, the students have to work at it till midnight.

  A.Completing

  B.To complete

  C.Having completed

  D.To have completed

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• 9I've worked with children before，so I knew what ________ in my new job.

  A.expected

  B.to expect

  C.to be expected

  D.expects

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• 10Volunteering gives you a chance ________ lives，including your own.       (2013·北京，21)

  A.change

  B.changing

  C.changed

  D.to change

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