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
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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：A