Theyusecomputerstokeepthetraff

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They use computers to keep the traffic _________ smoothly.

A．being run

B．run

C．to run

D．running

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As a new-comer of the class, Sarah hopes to become a friend of___ shares her interests and has common outlooks．

A．whoever

B．whomever

C．no matter who

D．anyone

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You can’t catch the charm of English poetry ___you understand its rhythm．

A．if

B．unless

C．though

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The word "breakthrough" is often used when talking about the newest drug or the next treatment ___ in cancer research．

A．finding

B．being found

C．to be found

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October 24, 1860, the Qing government and the Britain sighed "the treaty ofBeijing", ___ put an end to the second Opium war．

A．which

B．that

C．when

D．in which

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___ the invention of the steam engine, the industrial revolution played a vital role in human history．

A．Originating in	B．Originated in
C．To originate in	D．Being originated in

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