E-mail, as well as the telephone, an important part in daily munication.
A. is playing
B. have played
C. are playing
D. play
网友回答
(答案→)A. is playing
B. have played
C. are playing
D. play
解析： “名词+as well as+名词”结构作主语时，位于动词的单复数形式要与第一个名词（E-mail）保持一致。本题大意，电子邮件以及电话在日常交流中起着重要的作用。故A正确。