Sorry to have kept you waiting so long，but it’ll still be some time____Mr．Smith

题干

Sorry to have kept you waiting so long，but it’ll still be some time____Mr．Smith is available．

A．when

B．before

C．after

D．Since

上一题下一题 0.85难度单项选择更新时间:2015-03-12 08:50:10

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