Question

【题目】—Look at the sign! Smoking ________ here.
—I'm really sorry. I'll stop right now.
A.isn't allowing
B.doesn't allow
C.isn' t allowed
D.didn't allow

Answer 1

【答案】C
【解析】句意：—看看这个标志，这儿禁止吸烟。—真的很抱歉，我马上就停止。根据句子结构，此句是一般现在时态的被动语态。其构成为am/is/are+动词的过去分词。所以答案是C。