题目内容
7. —What were you doing your mother was cooking at II :00 this morning?
—Oh,I was watching a cartoon.
A. until B. while C. unless D. if
7. B 句意:——今天上午11点你妈妈在做饭时你在干什 么?——哦,我在看一部动画片。空格前后句子用的都是过 去进行时,故选B
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