下列哪种现象不是生物对环境的适应（  ）

下列能准确反映公民和人民关系的是 （       ）

今天的北京故宫，其实是“故宫博物院”的简称，那个曾经威严不可侵犯的地方，如今早已成为普通民众踏足参观的地方。北京故宫在历史上也叫（    ）

用所给词的适当形式填空

1. --How does John go to school?

   -He usually ____ (walk).

2. It's about ten ____  (kilometer) from my village the town(城镇).

 3. Jane's brother ____ (not take) the subway to school. He usually rides his bike.

 4. Wu Peng needs about twenty-five minutes ____  (get) to school every day.

 5. -How far do you live from your____ (grandparents) home?

   -About four kilometers.

—Yes. But he can speak a little.