2. 外语
  3. E-mail as well as telephones______more and more popular in daily communica-tion.

E-mail as well as telephones______more and more popular in daily communica-tion.

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问题 E-mail as well as telephones______more and more popular in daily communica-tion.
选项 A、have become
B、become
C、are becoming
D、is becoming
答案D
解析
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成人本科学位英语

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