E-mail,as well as telephones, ______ an
问题:
E-mail,as well as telephones, ______ an important part in daily communication. [ ]
A. is playing
B. have played
C. are playing
D. play
E-mail,as well as telephones, ______ an important part in daily communication. [ ]
A. is playing
B. have played
C. are playing
D. play