题目内容
---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
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题目内容
---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