根据括号里所给的汉语写出英语单词。

1.Try to____ （步行)or ride a bike when you travel a short distance.

2.Chinese people usually eat ____  (月饼) on Mid-autumn Day.

3.It isn't ____  (容易的) to learn English well.

4.Do you want to____ (制作) cards by hand for your teachers on Teachers' Day?

5.Cars pollute the ____ (空气)，so remember: Use your legs

如图，抛物线y=ax²+bx﹣4与x轴交于点A（2，0）和点B，与y轴交于点C，顶点为点D，对称轴为直线x=﹣1，点E为线段AC的中点，点F为x轴上一动点．

从产品质量到技术标准，从售后服务到危机处理，众多知名洋品牌在中国市场采用“双重标准”。为避免中国消费者遭遇“另眼相待”，政府必须（    ）

— Is this ____________book?

— No, it's ___________book.