Mary: Hello, Lucy! Let’s go to the post office. I want to send a letter. Lucy: OK. Let’s go. I want to send some postcards. Mary: Where do you send your postcards Lucy: I’ll send them to America. And where do you send it Mary: I think ten yuan or more. Lucy: That’s too expensive. Mary: I think so. Lucy: Why not send an e-mail on the computer Mary: That’s a good idea. Let’s go and find a computer. Lucy: Can you write an e-mail Mary: Yes, I can. They will go to find a computer.