Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.
Now, listen to the conversation.
4. What is the conversation mainly about?
A. To borrow textbooks.
B. To buy textbooks.
C. To preorder used books.
D. To preorder textbooks.
5. If you want to preorder books, you don't have to_____.
A. fill out a form and sign it
B. know the course names of next semester
C. get all the numbers of classrooms
D. make a checkmark in the boxes
6. When do students pay for the books?
A. As soon as they fill out the form.
B. The week before classes begin.
C. The week after they fill out the form.
D. The week after the classes begin.
7. If you bring the books back in two weeks after classes begin，you can______.
A. exchange them for other books
B. exchange them with other students
C. get all your money back
D. get air your deposit back
