________ I’m willing to help you out of trouble, you know, I don’t have much ti

题干

________ I’m willing to help you out of trouble, you know, I don’t have much time available.

A．Since

B．Unless

C．If

D．While

上一题下一题 0.85难度单项选择更新时间:2012-04-11 05:17:11

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