—Excuse me could you tell me where the post office is? — but I’m a stranger here．A. I’m

问题补充：

—Excuse me, could you tell me where the post office is?

—, but I’m a stranger here．

A. I’m not sure

B. I’m sorry

C. That’s righ

D. I’m afraid not

答案：

A. I’m not sure

B. I’m sorry

C. That’s righ

D. I’m afraid not

解析：考查日常交际用语。根据上下文语境：打挠一下，你能告诉我邮局在哪吗？很抱歉，我也是一个外地人。I’m sorry, but… 是习惯搭配。