be doing...when...表示“正在做…这时…”。如:
I was sleeping when the telephone rang.我正在睡觉这时电话响了。
类似的句式还有:be about to...when"正要做…这时…"。如:
He wad about to go to bed when the telephone rang. 他正要睡觉这时电话响了。
还有 had done...when..."刚刚做了…这时…"。如:She had gone to bed when the telephone rang. 她刚睡下这时电话响了。
匿名回答于2022-02-28 20:38:52