【正确答案】
D
【答案解析】[听力原文]
M: A. It is permitted to ride your bike here.
B. This sign shows you where the bikes can go.
C. Cars are not allowed in this area.
D. This sign is hanging on a fence.
选项A错误,因为“permitted”是允许的意思。选项B错误,因为这个指示牌表示自行车是被禁止的,意味着此处不可以使用自行车。选项C错误,因为图中指示牌没有提及汽车。选项D正确。