Tìm lỗi sai?

Tìm lỗi sai? 
1. Have she got two kittens?
2. She has study sailing lessons with her friends.
3. What's the weather as today?
4. She did not known anything about sailing or boats.
5. We are on a boat to go out of this harbour.
6. When he was 5 years old, he is very active and played all the time.
7. Would you mind if I close the door?