In fact fuels we burn and plant food we eat ________ their chemical energy in the form of heat.

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• 1I am very worried because my son ________ most of his spare time ________ playing games on the computer.

  A.concentrates；on

  B.concentrates；in

  C.focuses；to

  D.focuses；in

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• 2—Didn't you have a good time at the party? —Of course I did. As a matter of fact,  I had such fun that time seemed to ________ so quickly.

  A.go by

  B.go away

  C.go out

  D.go over

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• 3On Christmas Eve, we put up some balloons to _______ the festival atmosphere.

  A.make for

  B.add to

  C.add up

  D.join in

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• 4Terry, please ________ your cell phone when Grandma is talking to you.

  A.look up from

  B.look into

  C.look back on

  D.look through

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• 5The authorities will________the case further before they can come to a conclusion about it.

  A.look out　

  B.look up

  C.look through　

  D.look into

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• 6Have you got________books for the train journey?

  A.a good number

  B.a great deal of

  C.a good many of

  D.a good many

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• 7The decision about which college to go to cannot be made by any one of us________yourself.

  A.more than　

  B.other than

  C.rather than　

  D.better than

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• 8She loves the song _______, because her mother was once the singer of it.

  A.in particular

  B.in theory

  C.in practice

  D.in secret

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• 9The modern woman threw away ________ clothes and bought many modern clothes.

  A.out of date

  B.outofdate

  C.up to date

  D.uptodate

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• 10Our class is________ 60 students while theirs________ 65 students.

  A.consisted of；made up of

  B.made up of；consists of

  C.made up；compose of

  D.composed of；makes up

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