It’s not polite to enter the other’s room ________ knocking on the door. A. by B. with C. without D....
2023-02-05 04:27:29 46次 2013-2014学年广东省惠州市九年级第一学期英语期末试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It’s not polite to enter the other’s room ________ knocking on the door.
A. by B. with C. without D. from
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