when表示突然的意思时所用的句型

Question

如题所述

Answer 1

be about to do when 当正要做什么的时候（突然）怎么样了
e.g. I was about to leave the room when he came in.我正要离开房间时（突然）他进来了。
be doing when 当正在做什么的时候（突然）怎么样了
e.g. She was thinking of her friend when Tom called her.她正在想她朋友的时候Tom（突然）叫了她一声。
had done when 刚做完什么的时候（突然）怎么样了
e.g. I had just walked out of the kitchen when someone knocked at the door.我刚从厨房出来，（突然）有人敲门。