问题
选择题
E－mail,as well as telephones, an important part in daily communication.
A．is playing
B．have played
C．are playing
D．play
答案
答案：A
as well as连接主语时，谓语动词与其前面的名词在人称和数上保持一致，因Email是单数，故应排除B、C、D三项。
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