Помогите безотлагательно чтоб правильно было

1 а. I know an interesting story.
б.  He knows more interesting story.
в.She knows the most interesting story.
2.  а. This is a long way.
б. . This is longer way.
в. This is the longest way.
3.  а. Her work is very important.
б. His work is more important.
в. My work is the most important.
4.  а.. This is a bad song.
б This is a worse song.
в.  This is the worst song.                                                                                                                                                       5.а.  He is a good engineer.
б.  He is better engineer.
в.  He is the best engineer.
6. а. He brought her a beautiful flower.
б.  He brought her a more beautiful flower.
в.  He brought her the most beautiful flower.
7. а He told us about a happy man.
б.  He told us about a happier man.
в. He told us about the happiest man.