基地维修人员、外站维修人员应在飞机起飞前保留一张填写本次飞行内容的飞行记录纸（）并存

从方框中选择最佳句子补全对话，其中有一项是多余的。

A. Is there a supermarket next to the building? B: Where does he live? C: Can I help you? D: What’s the matter? E: I’m not sure. F: Do you know anything else?

Boy: Can you help me?
Man: Certainly.     1   
Boy: I can’t find my uncle’s house.
Man:    2   
Boy: I only know he lives in an apartment building.       
Man: Which building? Building A, B or C?
Boy:     3   , But I know the building
is close to a restaurant.
Man:     4   
Boy: Yes, there is a big supermarket.
Man:     5   
Boy: I also know there is a parking lot in front of the building.
Man: Oh, I know. I’ll take you there.