题目内容：

初二英语改写句子
1.You mustn't take pictures in the museum.9保持原句意思）
You ____ ____ ____ to take pictures in the museum.
2.I think it is good for your health.(改为否定句）
I ____ ____ ____ ____ good for your health.
3.Mary lives on _the third_ floor.(划线部分提问）
________________________________________.
4.Jack studies Engish hard,Jim doesn't study English hard.(合并一句）
Jim ____study English _____ _____ ____ Jack.