I was cookimg_____the bell rang.A.after B.while C.when

C
the bell rang的rang是短暂性动词,所以只能用when,while后面一定要跟持续性动词.

When 和While都译为“当…的时候”区别为when后的从句谓语动词既可是延续性动词也可是短暂性动词而且还可作并列连词译为“这时”.但以下句型一定用when作并列连词
句型
Abe about to do…when…正要做…这时(发生另一事) 句型
Bwas/were doing…when…正在…这时(发生另一事) 句型
Chad done…when…刚要做…这时(发事)
1.We were about to set out when it began to rain. 我们刚要出发天突然下雨了.
2.He had hardly sat down when his mobile rang. 他刚一坐下手机就响了.
3.I was walking along the bank of the river when I fell into it. 我正沿河岸散步突然掉进水里.

while后的从句谓语动词只能是延续性动词强调主从句的两个动词同时发生
1.While his mother was cooking in the kitchen the boy fell asleep in the chair.

• when

选C表示正在做某事时电话响了。

C when 当什么时候

答案： C

翻译： 当铃响时我在做饭.

C
when意为；就在那时
过去进行时+when+一般过去时或 一般过去时+when+过去进行 为常见句型
如：我们正在上课，就在那时一个女孩开始哭了。
We were having a class when a girl began to cry.
我在街上行走时遇见了我的朋友。
I met my friend when I was...

答案： C

翻译： 当铃响时我在做饭。



祝你学习进步，更上一层楼！ (*^__^*)
不明白的再问哟，请及时采纳，多谢！为什么不用when？应该用 when 的呀 while 后经常跟过去进行时，如： While I was doing my homework, my father was reading news...