根据句意及汉语提示完成单词

①It's i____ to smoke in some indoor public space and special outdoor work space.

②The teacher came in while Tom was d____ litter on the floor.

③Please be c____ next time. Don't make the same mistakes again.

④The English program can s____ ways for us to take an interest in learning English.

⑤If you study hard, you can make great p____.

我国湖泊最多的高原是（   ）