E-mail ,as well as tekephones,( )an important part in daily communication.A.is playing B.have played C.are playing D.play哪个?为啥,

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E-mail,aswellastekephones,()animportantpartindailycommunication.A.isplayingB.haveplayedC.areplayingD

E-mail ,as well as tekephones,( )an important part in daily communication.A.is playing B.have played C.are playing D.play哪个?为啥,
E-mail ,as well as tekephones,( )an important part in daily communication.
A.is playing B.have played C.are playing D.play
哪个?为啥,

E-mail ,as well as tekephones,( )an important part in daily communication.A.is playing B.have played C.are playing D.play哪个?为啥,
A 只看主语是单数还是复数,和as well as 带的那一串没有关系

单数。排除C和D。
我选A啦。B是完成时,难道现在就没扮演重要角色了吗?应该是现在进行时。

A,只看E-mail,as well as后带单数