Question

【题目】—Excuse me, sir. Smoking __________ in the gas station.
—Oh, I'm really sorry.
A.doesn't allow
B.isn't allowed
C.aren't allowed

Answer 1

【答案】B
【解析】考查被动语态；句意：对不起先生，在加气站禁止吸烟。根据句意，句子使用一般现在时的被动语态，结构为is / are + done. A. doesn't allow一般现在时主动语态 B. isn't allowed一般现在时被动语态 C. aren't allowed一般现在时被动语态，smoking是第三人称单数使用助动词is。所以答案是B。