Найти ошибку и исправить :
1. I has written a letter
2. We haven't never been to London
3. My town is more clean than New York
4. We travel a lot on summer
5. Much animals live in our forests

1. I have written a letter

2. We have never been to London

3. My town is cleaner than New York

4. We travel a lot in summer

5. Many animals live in our forests