-Who's your principal?-Miss Lin.-Is she kind?-Yes, she is.principal 校长 (和蔼的, 亲切的)university student 大学生-Who's he?- He's a university student.-Is he young?(年轻的)-Yes, he is. -Who‘s he ?-He's cunzhang.-Is he young?-No,he isn't. He's old.-Who's he?-He's xiyangyang.-Is he smart?-Yes, he is.smart 聪明的-Who's he?-He's huitailang.-Is he active?-Yes, he is.active 积极的-Who's she?..