Mary felt somewhat disappointed and was about to leave,__somethin_英语解答

Mary felt somewhat disappointed and was about to leave,__something occurred which
attracted her attention．
A．when B．where C．unless D．which
注意：leave后面有逗号

人气：460 ℃　时间：2020-05-21 14:49:53

解答

A．when
标志：
一般有这个词就用when：
was about to
这里表示突然.