Thefamousscientistwasgoingout_____

发布时间：2020-07-12 06:54:57

The famous scientist was going out _____ he found himself surrounded by lots of young people












A.when











B.before










C.while










D.after

网友回答

A解析考查固定搭配，was/were doing….when….，刚要做什么，这时，句意：著名的科学家刚要出去，这时他发现自己被一群年轻人围住了，选A。
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