E-mail, as well as telephones, ________ an important part in daily communicatio

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E-mail, as well as telephones, ________ an important part in daily communication.

A．is playing	B．have played
C．are playing	D．play

答案

解析

略

举一反三

Every possible means _____ .

A．has tried	B．has been tried
C．was tried	D．were tried

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______ you think he ______ back by dinner time?
a. Do/have come b. Did/will have come c. Does/will come d. Do/will have come

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He said that he dropped his bag when he ______ for the bus.
a. was runing b. was running c. were running d. is running

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.No sooner ______ he arrived home than he ______ to start on another journey.
a. has/was asked b. have/were asked c. had/is asked d. had/was asked

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If they ______, our plan will fall flat.
a. are co-operating b. had not co-operated c. won’t co-operate d. didn’t co-operate

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