题干
-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
答案(点此获取答案解析）
B
-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
