The background music in an assembly line is designed ______.

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• 1Every day after I went home, if not _______ from work, I will go out for a walk with my wife.

  A.tiring

  B.to be tire

  C.tired

  D.being tired

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• 2As our eating habits are changing，choosing what ______ is no longer as easy as it once was．

  A.eat

  B.eaten

  C.to eat

  D.to be eating

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• 3After the six-party talk in Beijing, an agreement was reached _________ that North Korea would abandon _________ nuclear weapons.

  A.stating; to develop

  B.stating; developing

  C.to state; to develop

  D.states; developing

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• 4The _________ look on his face suggested that what the monitor said was ___________.

  A.puzzling; puzzled

  B.puzzled; puzzled

  C.puzzled; puzzling

  D.puzzling; puzzling

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• 5A number of people have posted their own videos on the website You Tube, ____________their attempts to become “musicians”.

  A.to show

  B.showing

  C.showed

  D.show

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• 6_________ many times, she still can't remember it. 

  A.Had told

  B.Having been told

  C.Having told

  D.Being told

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• 7_____ in the garden for an hour, the girl suddenly realized she had forgot locking her car door.

  A.Reading

  B.To read

  C.Having read

  D.To have read

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• 8_________, but he still couldn't understand what I meant .

  A.Having been told many times

  B.Having told many times

  C.He had been told many times

  D.Although he had been told many times

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• 9Why not ______ your potential that is hidden in your body? That will be your only chance.

  A.to release

  B.release

  C.releasing

  D.released

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• 10Having mastered the technologies of manned spacecraft, China became the third country in the world ______ manned spaceflight independently.

  A.develop

  B.to develop

  C.developing

  D.developed

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