摘要： With the development of modern society, E-mail as well as telephones an important part in daily communication. A. have played B. is playing C. are playing D. played
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With the development of modern society, E-mail as well as telephones an important part in daily communication.
| A．have played | B．is playing | C．are playing | D．played |
With the development of modern society, E-mail as well as telephones an important part in daily communication.
| A．have played | B．is playing | C．are playing | D．had played |
With the development of modern society, E-mail as well as telephones???????? an important part in daily communication.
A. have played???????? B. is playing???????? C. are playing???? D. played
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