Tom is watching TV, ________ his father is busy working in the study. A. after B. while C. before D....
2022-11-02 01:54:37 203次 牛津译林版8A UNIT6试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
Tom is watching TV, ________ his father is busy working in the study.
A. after B. while C. before D. so
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