I was walking in the park with my dog. The weather was nice.
When we ( go ) by the river, we ( see ) a woman. She ( sit ) and ( paint ).
When we were going by the river, we saw a woman. She was sitting and painting.
We ( walk ) when my dog ( see ) another woman. She ( sit ) and ( read ) a book.
We were walking when my dog saw another woman. She was sitting and reading a book.
Then my dog ( start ) to get crazy. I ( can not stop ) him.
Then my dog started to get crazy. I couldn`t stop him.