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E-mail, as well as telephone, ______ an important part in daily communication.
A．is playing B．have played C．a(chǎn)re playing D．played
A
考查主謂一致。本題的謂語(yǔ)動(dòng)詞和E-mail保持一致，應(yīng)該使用單數(shù)。本題沒(méi)有出現(xiàn)過(guò)去時(shí)的時(shí)間狀語(yǔ)，所以使用現(xiàn)在時(shí)。
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