补全对话

Tom: Where are you going this afternoon?

John:  

Tom: Who are you going with?

John:  

Tom:  

John: I'm going to buy a dictionary.

Tom: When are you going?

John:  
Tom:  

John: We are going by car.

A. We are going at 4 o'clock. B. I'm going with my father. C. I'm going to the bookstore. D. What are you going to buy? E. How are you going there?