“He is a girl”怎么改病句?

there is a girl to laugh loudly.改病句 Although/thangh he is young but he knows a lot这个病句怎么改? This is Mary.He is English.这个病句怎么改 Young although the boy is he knows a lot.这个病句怎么改? he is a girl Is he a teacher or a driver?------Yes,he is a teacher.改病句 Is she a english girl.改错怎么改? He is a teacher 怎么改感叹句 Betty is a pretty girl.Yes,she's too clever.改病句 He is a green finger.改同义句怎么改? Is he from English改病句 She is a girl是病句吗?