Question

【题目】It is ________ to enter other people's rooms without knocking at the door first.

A. polite B. patient C. impolite D. active

Answer 1

【答案】C

【解析】句意：不先敲门就进入别人的房间是不礼貌的。考查形容词辨析题。A. polite有礼貌的；B. patient安静的；C. impolite没有礼貌的；D. active积极的。without knocking at the door first不先敲门。根据句意，可知ABD三项都与句意不合，故选C。