题目内容
E-mail, as well as telephones, an important part in daily communication.
A. is playing B. have played C. was playing D. play
A
解析:
略
![](http://thumb2018.1010pic.com/images/loading.gif)
练习册系列答案
相关题目
题目内容
E-mail, as well as telephones, an important part in daily communication.
A. is playing B. have played C. was playing D. play
A
略