Part AYou 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.
Now look at Question 1. What does the man mean
A．The library no longer had the book on reserve. B．The library closed earlier than he’ d expected. C．The professor had chosen a mystery book for him instead. D．The homework assignment isn’t clear.