Исправьте ошибки: 1. - open the window! - but i opened the window! 2. it`s the funny picture i have ever seen. 3. i haven`t met him two days ago. 4. it`s the most dufficult text we ever translated. 5. have he ever been to suzdal? 6. have you ever been to a art galley?

1. - Open the window!
    - But I have already opened the window!
2. It`s the funniest picture I have ever seen.
3. I didn`t meet him two days ago.
4. It`s the most dufficult text we have ever translated. 
5. Has he ever been to Suzdal?
6. Have you ever been to an art galley?