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    --- At present E-mail English is more and more popular among teenagers. --- Yes. E-mail English to save time. A.is being used B.has used C.was used D.is using 【查看更多】

     

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    --- At present E-mail English is more and more popular among teenagers.

    --- Yes. E-mail English ______ to save time.

    A. is being used     B. has used     C. was used    D. is using

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