E-mail, as well as telephones, ___ an important part in daily communication.
A．have playedB．is playingC．a(chǎn)re playingD．play
B
這題考查主謂一致：當(dāng)主語被as well as連接時，謂語和前面的主語一致，這題前面的主語是E-mail，所以謂語用單數(shù)，選B。
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