E-mail, as well as telephones, an important part in our daily munication.
A. play
B. have played
C. are playing
D. is playing
网友回答
A. play
B. have played
C. are playing
(答案→)D. is playing
解析：考查主谓一致。as well as的意思是：和，以及。通常放在主语的后面，但是谓语动词的单复数一定要根据前面的主语来确定，即根据E-mail来确定，所以这里谓语动词用单数。句意：电子邮件和电话在我们的日常交际中扮演重要的作用。故D正确。