Mike: What are you going to do this afternoon?
John: I' m going to visit my teacher.
Mike: How are you going to get there?
John: I' m going to get there by subway.
Mike: Where does he live?
John: His home is next to the post office. Turn left at the traffic lights in front of the subway station and then go straight.
Mike: I' m going to the post office this afternoon. Let's get together after lunch.