As a middle school student, English writing is an essential skill that we need to develop. Here is a sample essay for a third-year middle school student:

My Favorite Animal
My favorite animal is a panda. Pandas are cute and cuddly, with black and white fur. They are native to China and live in bamboo forests. Pandas are also endangered, which means there are not many left in the world.
I like pandas because they are peaceful animals. They spend most of their time eating bamboo and sleeping. Pandas are also very good at climbing trees, which is impressive considering their size! When I see a panda, I feel happy and relaxed.
