grading...grading

Some of my favorite sentences as I grade my final exams and tests:

A lot of house pets are eatable, so the human can care of them to eat them, and it depends on the society and the culture.
The last point is that servise pets are not for eat, but in some culture people grow pets for food.
When you want to talk with other people, a dog usually get ready to chat with you.
When you want to say some bad words or sentences to someone, a dog can become that person, it just listen, never say.
Pets and humans are friends, we should protect them.  We cannot hurt them.  If you always hurt them, you will hurt pet's heart.
On the other hand, pets responsibilities are greeting you when you come home, eating, barking, and peeing on your sofa.  That's it.