–With3Gmobilephones,peoplecanevenseeeachotherastheytal...

问题详情：

 –With 3G mobile phones, people can even see each other as they talk.

 –Really? Would you show me      it, please?

       A. how to use        B. when to use      C. where to use    D. what to use

【回答】

A

知识点：非谓语动词

题型：选择题