1. 用方框中所给单词的适当形式填空，每词限用一次（每空一词）。

achieve   thick   protect   ill   wide

1. （1） It's very cold today. Wear yourcoat.
3. （2） We all know that English is used in the world.
5. （3） Work hard, and you will your goal.
7. （4） It's our duty to the environment.
9. （5） I hope he will put through his soon.