Mary is my cousin. She is only nine years old. She is in Class 2, Grade 4. She likes sports. (A) She plays baseball every day. Her math teacher is Mrs. Brown. Mrs. Brown has a daughter. Her name is Mona. She is Mary’s good friend. She is nine, too. And she likes sports, too. But she doesn’t like playing baseball. (B)She likes playing ping-pong.(C)她有九个乒乓球. She (D)____some ping-pong balls to school every day.