问题
选择题
E-mail, as well as telephones, ___ an important part in daily communication.
A．have played
B．is playing
C．are playing
D．play
答案
答案：B
这题考查主谓一致：当主语被as well as连接时，谓语和前面的主语一致，这题前面的主语是E-mail，所以谓语用单数，选B。
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