Lucy is ___(1)___ girl. She is only five. She doesn't go to ___(2)___ school, and of course she ___(3)___ know ___(4)___ to read and write. But her sister Mary is a school girl. She is ten. One day, Mary saw her little sister at the table, ___(5)___ a pen and a piece of paper in her hand. "What are you doing?" she asked. "I'm writing a letter ___(6)___ my friend Kate," said Lucy. "But ___(7)___ can you? You cannot read ___(8)___ write," Mary said to her little sister. "Well, it ___(9)___ matter, ___(10)___ Kate doesn't know how to read," Lucy answered.