第183页 - 译林版启东中学作业本七年级英语（上下册）

they noticed people in the city were not really happy. So they returned to the forest and enjoyed their life.

We should value our life and enjoy everything around us.

 Once upon a time, there were two little pigs.

 When they grew up, their mother decided to let them go out of the forest.

 They noticed people in the city were not really happy.