听下面5段对话。每段对话后有一道小题，从题中所给的A、B、C三个选项中选出最佳选项。听完每段对话后，你将有10秒钟的时间来回答有关小题和阅读下一小题。每段对话你将听一遍。
1.What is the man probably doing?
A. Listening to something. B. Fixing the radio. C. Working.
2. What does the professor imply?
A. He has returned the thesis(论文) proposal.
B. He hasn’t read the proposal yet.
C. The proposal isn’t acceptable.
3. What is the tax rate?
A. 2%. B. 4%. C. 10%.
4. Who won Sally in the match?
A. Mark. B. Mark’s brother. C. Her brother.
5. What does the man want to do?
A. Go to the place w
