......Part B......
A: How much is this book?
甲:这本书要多少钱?
B: It's seven dollars.
乙:七块钱。
A: Do you have change for a hundred?
甲:你有零钱找开100块吗?
B: No problem.
乙:没问题。
A: OK. Here's the money.
甲:好。钱给你。
B: Thank you. Here's the book and your change.
乙:谢谢。这儿是您的书和零钱。