问题
选择题
---With 4G 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
答案
答案：A
题目分析：句意：——使用4G手机，人们甚至可以看到他们彼此交谈。——真的吗？请你可以给我展示一下怎么使用它好吗？根据句意可知是怎样使用4G手机，故选A。