辽和北宋灭亡的共同原因是[ ]
A、长期遭受外族的民族压迫
B、被农民起义推翻
C、外戚、宦官专权
D、政治腐败
答案：D
《中小学校建筑设计规范》规定：绿化用地中学每学生不应小于（）
A.0.5m2
B.1m2
C.1.5m2
D.2.0m2
E.2.5m2
用所给词的适当形式填空。
1. Kim is going to hold art_______ (exhibition) that will make him rich and famous.
2. What are you going_______ (be) when you grow up?
3. Lucy wants_______ (get)a lot of exercise every week.
4. He admires actors very much. He's going to take_______ (act) lessons every day.
5. Her parents make her (learn)a new language.
