Sound travels in the same way as light _____.A．travel B．has done C．traveled D．do

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Sound travels in the same way as light _____.

A．travel

B．has done

C．traveled

D．does

答案

解析

略

举一反三

The growth of part time and flexible working patterns, and of training and retraining schemes, _____ more women to take advantage of employment opportunities.

A．have allowed

B．allow

C．allowing

D．allows

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–Who is Jerry?
–_____? I saw you shaking hands with him at the meeting,

A．Don’t you meet him yet	B．Hadn’t you met him yet
C．Didn’t you meet him yet	D．Haven’t you met him yet

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While people may refer to television for up-to-the-minute news, it is unlikely that television _____ the newspaper completely.

A．replaced

B．have replaced

C．replace

D．will replace

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This kind of glasses manufactured by experienced craftsmen _____ comfortably.

A．is worn

B．wears

C．wearing

D．are worn

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The fifth generation computers, with artificial intelligence, _____ and perfected now.

A．developed	B．have developed
C．are being developed	D．will have been developed

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