题目内容：

短文改错。

My parents live in the country. They keep a dog calling Ah Fu. One day my parent went to work in the fields taking my little sister with Ah Fu along. While they working, my sister walked to the river nearby. Ah Fu followed her there. She was trying to pick a flower while she fell into the river. Ah Fu barked and jumped to the water immediate. When my parents heard Ah Fu barking they ran to the river. They saw Ah Fu swimming towards the bank carried my little sister. My parents praised Ah Fu warm. It was our brave Ah Fu who had saved my little sister.