I.单项选择。（10分）
1. It is sunny. What __________ weather!
A. a good B. an awful C. great D. bad
2. Yesterday I found a little boy _________ in the corner.
A. crying B. crys C. cry D. to cry
3. There are many people in the park on weekends. It is very _________.
A. expensive B. inexpensive C. crowded D. uncrowded
