1. (2020六上·龙岗期末) 根据题意选择正确的单词或短语填空。

A. own   B. have to    C. alive    D. each other    E. anything    F. in danger

1. （1） Do you buy in the robot museum?
3. （2） It's cold outside. We wear lots of heavy clothes.
5. （3） Many wild animals are now. We need to protect them.
7. （4） We all need air to keep us.
9. （5） People give presents to at Christmas.
11. （6） People bring their shopping bags and stop using plastic bags.