应该填 instead of
She didnt watch TY last night ,but she played the violin
=she played the violin 【instead of 】 waching TV last night.为什么？可以讲解一下吗？instead of doing sth 意思是：代替做某事 这句话意思是：她昨天晚上拉小提琴，而没有看电视。即（拉小提琴代替看电视）