—What were you doing ______ your mother came back? —I was doing my homework, of course. A.during B.a...
2022-07-14 12:43:45 59次 江苏省南通市2019-2020学年八年级上学期期末英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
—What were you doing ______ your mother came back?
—I was doing my homework, of course.
A.during B.after C.while D.when
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