I was watching the news on TV the power went off. A. whenB. asC. whileD. until

发布时间：2020-08-16 15:53:39

I was watching the news on TV      the power went off.
A. when
B. as
C. while
D. until

网友回答

(答案→)A. when
B. as
C. while
D. until
解析：考查连词。be v-ing … when …正在做……突然……，句意：我正在看新闻的时候突然停电了。故选A。
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