Ididn’tknowthisyearsago,butrec

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I didn’t know this years ago ,but recent science ____that inharmonic marital(婚姻的) life like quarrels or fights harms one’ heart.

A．showed

B． is showing

C．has shown

D．shows

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In the past few years, __________much improvement in the traffic.

A．there has been

B．there has had

C．there have been

D．there had been

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They became friends again that day. Until then they ______to each other for nearly two years.

A．didn’t speak	B．hadn’t spoken
C．haven’t spoken	D．haven’t been speaking

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The news that volunteer workers will go to homes for the aged ______now.

A．is being talked about	B．are being talked about
C．is being talked	D．are being talked

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The girl who ___ beautiful eyes _____a prize in yesterday’s singing contest.

A．has…wins

B．had…won

C．having…won

D．has…won

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Qing Dynasty ______for more than 200 years.

A．existed

B．has existed

C．was existed

D．has been existed

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