—Howlongareyoustaying?—Idon'tknow.

问题详情：

—How long are you staying?

—I don't know.________.

A．That's OK　　　　　　　    B．Never mind

C．It depends      D．It doesn't matter

【回答】

解析：It depends视情况而定。That's OK“没关系，别客气”；Never mind“不要紧，没关系”；It doesn't matter没关系。

*：C

知识点：交际用语

题型：选择题