—Where is your mother， Jack? —She is busy ____ a cake. I will have a birthday party tonight. A. make...
2022-12-28 13:14:59 20次 2014-2015学年北京房山周口店中学八年级下期中英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
—Where is your mother， Jack?
—She is busy ____ a cake. I will have a birthday party tonight.
A. make B. made C. making D. to make
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