问题补充:
It is not polite to enter others’ rooms knocking on the door.
A. by B. with C. without
答案:
解析:介词。根据句意:没有敲门就进入别人房间是不礼貌的。
时间:2021-05-05 16:00:57
It is not polite to enter others’ rooms knocking on the door.
A. by B. with C. without
解析:介词。根据句意:没有敲门就进入别人房间是不礼貌的。