______ you call me to say you’re not coming, I’ll keep waiting for you at the th

题干

______ you call me to say you’re not coming, I’ll keep waiting for you at the theatre.

A．Unless

B．When

C．If

D．As

上一题下一题 0.4难度单项选择更新时间:2012-12-10 01:08:50

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