Jók ezek a mondatok? [angol]

Schools give students too much homework.

In my opinion it's true that schools give students too much homework.

And I'm afraid to say they spend too much time at school.

These are big problems.

The children have to do more excercise.

The students haven't got free time.

They want to spend more time with their friends.

They want to study other subjects too.

I believe the teachers shouldn't give up homework into the weekends.

The students usually don't do their homework, because they think it's boring.

/kezdő angolos vagyok/

Ha valaki talált benne hibát, légyszives javítson ki. ;)

Akinek lenne még ötlete mit lehetne írni, akkor az is írja le. :S Kellene még vagy 2 mondat. De nem jut már semmi az eszembe.