一、听力（共两节，满分30分）
第一节（每段对话仅读一遍；共5小题；每小题1.5分，满分7.5分）
请听下面5段小对话，选出最佳选项。
1. What does the woman mean?
A. She doesn’t know Mike. B. Mike is no longer her good friend.
C. Mike is now her good friend.
2. Why is the woman worried?
A. She can’t find her child. B. She lost her cellphone. C. She missed her bus.
