According to a recent study, nearly one third of children globally ____ three hours a day or more watchingTV or on computers.

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• 1— Have you noticed some people _____ to check the exact signature before sending a text message? — It happens.

  A.bother

  B.didn't bother

  C.don't bother

  D.are bother

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• 2He is the only one of the boys of his class who _____ the piano well.

  A.plays

  B.play

  C.playing

  D.are playing

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• 3 The increasing number of cars on the road _______ traffic. This was the reason why we couldn't get here on time.

  A.choked back

  B.choked down

  C.choked out

  D.choked up with

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• 4The professor devoted all his life __________ the treatment of AIDS.

  A.to research

  B.in researching

  C.to researching

  D.at researching

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• 5My parents _____ in Hong Kong. They were born there and have never lived anywhere else.

  A.live

  B.lived

  C.were living

  D.will live

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• 6Planning so far ahead _____ no sense-so many things will have changed by next year.

  A.made

  B.is making

  C.makes

  D.has made

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• 7Look at the timetable. Hurry up! Flight 4026 _____ off at 18:20.

  A.takes

  B.took

  C.will be taken

  D.has taken

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• 8The Princess and the Frog is a fairy musical that _____ the days when Walt Disney was a person, not a brand.

  A.was dated back to

  B.dates back to

  C.has been dating from

  D.had dated from

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• 9Mr. Black ______ Shanghai in a few days. Do you know when the earliest plane ______on Sunday?

  A.is leaving, takes off

  B.leaves, takes off

  C.is leaving, is taking off

  D.leaves, is taking off

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• 10（2014年安徽省合肥市高三第三次教学质量检测）30. Nervous and anxious, Jill failed ______ a good impression at the job interview.

  A.to have made

  B.making

  C.to make

  D.having made

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