—Jane, have you finished your paper? —No, I ________ my sister with her drawing all the morning. A．h...
2022-12-22 17:49:50 47次 2014届山东省莱芜市高二上学期期末考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
—Jane, have you finished your paper?
—No, I ________ my sister with her drawing all the
morning.
A．help B．helped C．was helping D．have been
helping
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