Selectingamobilephoneforpersonaluseisnoeasytaskbecause...

问题详情：

 Selecting a mobile phone for personal use is no easy task because technology ___ so rapidly.

A. is changing      B. has changing      C. will have changed    D. will change

【回答】

A

知识点：现在进行时及其被动式

题型：选择题