he was still smiling when the door opened and his wife came in

he was still smiling when the door opened and his wife came in
the door opened,我听过open the door,这里是怎么回事?
英语人气:980 ℃时间:2019-08-19 01:47:54
优质解答
这是一个句型
be (过去进行时) doing something when something else happened (过去时)
他仍在笑时门开了,太太走了进来.(说明他没想到太太会在这里到来.)
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