摘要： E-mail, as well as phone calls, in daily communication.
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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．played |
E-mail, as well as telephones, _____ an important part in daily communication.
A．is playing B．have played C．are playing D．played
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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
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