_________ to reach them on the phone, we sent an email instead.A．FailB．FailedC．T_刷题宝

题干

_________ to reach them on the phone, we sent an email instead.

A．Fail

B．Failed

C．To fail

D．Having failed

上一题下一题 0.85难度单项选择更新时间:2013-03-27 06:57:24

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