阅读短文，判断下列句子正误。

Hello, I'm a pupil. This is my school. This is my English teacher, Ms Li. This is my classroom. Look! This is my desk. It's blue. This is my chair. It's blue too. This is my schoolbag. It's red and black. My pencil is on my book. My book is on my desk. My new pen is in my schoolbag. My schoolbag is in my desk.