一、根据中文意思，完成句子。
1. 天空为什么是蓝色的？
the sky ?
2. 你看上去如此累。为什么不休息呢？
You look so . have a rest?
3. 我们为什么不能在白天看见月亮？
we during the day?
4. 你为什么不喝一杯茶？
you have a of tea?

1. Why is, blue
2. tired, Why don't you
3. Why can, see the moon
4. Why don't, cup

二、按要求完成句子。
1. Why not have a rest?
（用 Why don't 改写句子）

2. Let's play football after school.
（用 What about 改写句子）

3. Why don't we go to the zoo?
（用 Let's 改写句子）

1. Why don't you have a rest?
2. What about playing football after school?
3. Let's go to the zoo.