Kim: Are you ready to go see the 1) sights ?
Ken: I am. How will we get around?
Kim: The subway 2) system here is great, so we'll use that.
Ken: Isn't the subway 3) dirty and 4) dangerous ?
Kim: It's not really dangerous, except maybe if you're alone late at night. And, well, it isn't clean.
Ken: How much does it cost?
Kim: It's normally $2 5) per 6) ride . But I think we should buy Fun 7)Passes . They cost $7 and can be used for a full day.
Ken: Wow, you've thought of everything!