Part ADirections: You will hear 10 short dialogues. For each dialogue, there is one questi

Part A

Directions: You will hear 10 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer ― A, B, C or D, and mark it in your test booklet. You will have 15 seconds to answer the question and you will hear each dialogue ONLY ONCE.

听力原文：M: Excuse me. Do you have anything on the history of basketball？

W: I believe so. Look in the card catalogue under sports and also under hobbies.

What is the probable relationship between the two speakers？

A．Bookstore assistant and customer.

B．Teacher and student.

C．Librarian and student

D．Father and son.