Chuyển các câu sau thành câu mệnh lệnh phủ định
1. Turn off the light when you go out. -> .......................
2. Be silly. I will come back. -> .......................
3. John asked me to turn off the radio. -> .......................
4. Please tell her to leave the room. -> .......................
5. My mother ordered me to clean my room. -> .......................