卷首语：亲爱的同学们，第一学期即将过去，在这里为期末考试练练兵，京翰教育预祝你期末考个好成绩！
Unit 2 It must belong to Carla
单元检测
一．单项选择(15)
1. Sally _____ go to school by bike, but I’m not sure.
A. may be B. maybe C. might D. must
2. –Listen! Helen is singing in the next room.
- It _____ be Helen. She has gone to Guangzhou.
A. would B. can’t C. could D. might
3. I’m really ______ because of my test.
A. anxious B. agree C. wonderful D. comfortable