. He used to walk a pet dog. (改为否定句)
He _______ _______ _______ walk a pet dog .
Jackie Chan is very handsome.(改为感叹句)
_______ _______ Jackie Chan is!
. I was making model planes when my mother came back. (对画线部分提问)
_______ _______ _______ _______ when your mother came back?
Tom wasn’t old enough to go to school. (同义句转换)
He was _______ _______ _______ go to school.