I have a beautiful pencil-case. it is twelve yuan. I like it very much.
my pencil-case colour is brown. it has ten children. they are four pens, two ball-point pens, four pencils, a rubber, a ruler, and a corrector tape.
my three pens have three colours﹕red, blue, black. they are six yuan. my ball-point pens are cute. the blue one has a mickey mouse on it. my rubber, pencils, ruler are beautiful.
my black pen helps me do chinese home work. blue pen helps me do math home work.