Reducing using energy and water could help us save money
They provide many endangered animals with homes and helpeducate the publics protect them.
A person polite never laugh at people when they are in trouble.
places of interest
PS,貌似前两句都是英语书上原文.
同学,好好努力啊嗯哪，今年是初四，以前学的几乎都忘了，看见题就觉得很面熟，但就是想不起来了，呵呵