题目内容
E-mail, as well as telephones, ___ an important part in daily communication.
A.have played | B.is playing | C.are playing | D.play |
B
解析
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题目内容
E-mail, as well as telephones, ___ an important part in daily communication.
A.have played | B.is playing | C.are playing | D.play |
B
解析