【北京市昌平区2011年中考一模英语试题】
四、单项填空（共15分，每小题1分）
从下面各题所给的A、B、C、D四个选项中，选择可以填入空白处的最佳选项。
21. My mother is a science teacher. _____ works in a high school
A. She B. Her C. Hers D. She’s
22. There _____ many flowers in our school yard. They look very nice.
A. is B. are C. was D. were
