A：She is my sister.
B：No，he isn't.
C：Yes，she is.
依据课文填空
子路日：“愿闻子之志。”子日：“老者安之，____，____。”
— What does Fang Yan do in her free time?
— She often _____ a movie.
瓦特发明了蒸汽机。(扩句,至少扩两处)
