____I was getting ready to watch tv,the light was off.A while B.as C when
问题描述：
____I was getting ready to watch tv,the light was off.A while B.as C when
答
____I was getting ready to watch tv,the light was off.
A while B.as C when
这三个词都有“当...的时候”的意思,但是只有while有“正在...的时候,并且有同时进行的意味!
选A!
译一下：当我正准备去看电视的时候,灯灭了.