问题
选择题
to reach them on the phone, we sent an email instead
A．Fail
B．Failed
C．To fail
D．Having failed
答案
答案：D
本题考查非谓语动词完成式的用法。强调非谓语动词fail的动作在谓语动词sent之前发生。
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to reach them on the phone, we sent an email instead
A．Fail
B．Failed
C．To fail
D．Having failed
答案：D
本题考查非谓语动词完成式的用法。强调非谓语动词fail的动作在谓语动词sent之前发生。