题目内容
【题目】He was having supper _____ his father came back home.
A. whenB. whileC. ifD. as soon as
【答案】A
【解析】
句意:他的父亲回到家时,他正在吃晚饭。when当……时候,表示时间点;while当……时候,表示时间段;if如果,as soon as一……就……。根据句意when+一般过去时的句子,主句用过去进行时,故选A。
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题目内容
【题目】He was having supper _____ his father came back home.
A. whenB. whileC. ifD. as soon as
【答案】A
【解析】
句意:他的父亲回到家时,他正在吃晚饭。when当……时候,表示时间点;while当……时候,表示时间段;if如果,as soon as一……就……。根据句意when+一般过去时的句子,主句用过去进行时,故选A。