It is widely believed that smoking______ lung cancer?[ ]A. contributes to B.

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It is widely believed that smoking______ lung cancer?[ ]
A. contributes to
B. turns to
C. objects to
D. points to

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举一反三

-Tim.Don"t ________ the fire, or you will get burnt.
-All right.[     ]
A．look forward to
B．pay attention to
C．get close to
D．turn your back to

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The match began to ________ in the second half after two players were replaced.[     ]
A．come to an end
B．come to power
C．come to life
D．come into being

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The more one is ________ the Englishspeaking environment, the better he or she will learn the language. [      ]
A. exposed to
B. filled in
C. caught on
D. kept up

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The theory that the earth was round, and not flat, was laughed at when it was first ______.[      ]
A. put forward
B. applied for
C. given out
D. built up

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I always have so many things to ________ when I come back to the company after a trip abroad. [      ]
A. add to
B. contribute to
C. attend to
D. appeal to

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