题目内容
【题目】He was filled with sadness as he watched her __________ the crowd.
A. disappeared
B. disappear into
C. disappearing
D. disappeared into
【答案】B
【解析】句意:当他看到她消失在人群中时,他满怀忧伤。disappear为不及物动词;watch sb.do sth.看到某人做某事(整个过程); watch sb. doing sth. 看到某人正在做某事(片段)。
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