根据短文内容，从每小题所给的三个选项中，选出一个正确答案。

Hello! My name is Mary Smith. My 1name is Mary, and my last name is Smith. I'm 13 years old. 2 people are in my family. They are my parents, my brother and me. My parents are teachers in a school in China. My brother and I are not in China. So we always 3 our parents at 957-6532. These are our rooms. My room is4but my brother Eric's room isn't. His books are always everywhere. Eric always asks, " 5 are my books?" What's that under his bed? Oh, it's his dog. The name of it is Bob. It is white.