根据对话内容判断正（T）误（F）。 S: Excuse me. do you have any bags? C: Yes. What kind do you need? The big one? S: Yes, how much is it? C: It is 50 dollars. S: Oh, it's too dear! C: How about the small one? It is cheap and it's 15 dollars. S: But I don't like blue bags. C: We have this kind of bags in all colors. S: That's great!1 will take the red one. C: Here you are. (     )1.  Sarah wants a big bag. (     )2.  The big bag is not cheap. (     )3.  The small bag is 35 dollars. (     )4.  Sarah likes the blue bag. (     )5.  Sarah takes the bag for 15 dollars.