are these sentences grammatically correct?

Question

1.All of them are changed but four of them are changed for the worst.

2.Seven of the most familiar faces at the reunion are the cheerleaders, four girls who once controlled the lives of many students of that alumnus.

3.They are the superiors of a damnable fraternity.

4.Nothing is changed with them because they stayed the way they are.

5.. It’s been a long period of time when these men became a force of boys who put a life of many weak students in hell

Answer 1

1.All of them were changed but four of them for the worst.

2.Seven of the most familiar faces at the reunion were the cheerleaders, girls who once controlled the lives of many students of that class.

3.They are the superiors of a damnable fraternity.

4.Nothing is changed with them because they stayed the same.

5.. During a long period of time these men became a force of boys, which put the lives of many weak students in hell

Answer 2

1.All of them are changed but four of them WERE changed for the worst.

2.Seven of the most familiar faces at the reunion are the cheerleaders, four girls who once controlled the lives of many students of that alumnus.

3.They are the superiors of a damnable fraternity.

4.Nothing is changed with them because they stayed the way they WERE.

5.. It’s been a long period of time SINCE these men became a force of boys who put THE life of many weak students in hell

Answer 3

1.All of them have changed but four of them had changed for the worse.
2. correct
3. i dont understand
4. Nothing has changed in them because they stayed the way they were.
5. It has been a long time when these men became a force to boys who puts lives of many weak students in hell.

Answer 4

iam not sure so why dont use your spell check

Answer 5

No.