填空，补全对话。

A: May I go on a trip to Shenzhen, Mum?

B: To __________? I don't know, Jenny.

A: It's a famous city.

B: Is it very far __________ Shijiazhuang?

A: Yes, very __________.

B: I think you're __________ young __________ go there, Jenny.

His father is _____ English teacher. [ ]

A. a

B. an

C. /