pen/pencil/ruler/bag — 英语阅读题

阅读短文，回答问题。 My School Bag Hello! I am Kitty. Look at my bag. It is new. Open my bag, please. You can see many school things. This is my pen. It is blue. This is my pencil. It is yellow. This is my ruler. It is long. I like my bag and my school things. Question: What is in Kitty's bag? Please write three things.（凯蒂的包里有什么？写出三样文具。）