A: Hi! ?
B: I'm great. What are you doing here?
A: . What about you?
B: I want to send a postcard to my friend.
A: Oh, I see.
B: Can you tell me how to write a postcard?
A: ! . Then write what you want to say to your friend on the left. You should put the address on the right and .
B: Oh, I see. Thank you very much.
A. don't forget the stamp