一、单项选择（15小题，每小题1分，共15分）
请从各题后所给的A、B、C、D四个选项中选择最佳答案。
1._____ people were killed in the last flood.
A.A thousand of B. Thousands of C. Thousands D. Thousand of
2.When I found if was dark around me I knew that I _____.
A. was in trapped B. was being trapped
C. was trapped D. am trapped
