* I carry my books in a backpack.
* The backpack is red and blue.
* My backpack has a zipper.
* She put her lunch in her backpack.
* He bought a new backpack for school.
* The backpack is heavy.
* My backpack has many pockets.
* I use my backpack to carry my things.
* The backpack is made of nylon.
* I like my backpack because it's comfortable.