听一段对话,回答第11、12小题。
()11. What kind of book are they going to buy?
A. A storybook.
B. An English magazine.
C. A science magazine.
()12. When does the bookstore close?
A. At 6:00 p.m.
B. At 5:30 p.m.
C. At 6:30 p.m.