Mrs. Green promised________all she can to help us. A. knowing B. to know C. doing D. to do
2022-10-07 02:36:13 182次 新目标八年级上册Unit6 单元检测卷（无听力） 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
Mrs. Green promised________all she can to help us.
A. knowing B. to know
C. doing D. to do
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