-Where is Billy? -He is ______ the phone with his friend Rob in the room. Rob is helping him ______ ...
2022-09-22 10:28:36 38次 四川省成都外国语学校2018-2019学年七年级下学期期中考试英语试卷 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
-Where is Billy?
-He is ______ the phone with his friend Rob in the room. Rob is helping him ______ his math.
A. on; with B. in ; with C. on; at D. in; at
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