Don't ( ) your keys in the classroom when you go home.

Don't ( ) your keys in the classroom when you go home. -Don't leave your books on the desk when you finish you home Don't forget_____the light when you leave the classroom. 3.You don't forget your keys.(改为祈使句) You can't go home now.you clean the classroom.A.must.B.can.C He can't be in the classroom,I saw him go home a minute ago You__clean the classroom after school.You can't go home.a.mu Don't（）in the classroom Don't (run)in the classroom now. Don't smoke in the classroom, Must I go home now?No,you don't _.But you _finish your homew Don't forget anything behind when you go back home.这句话有什么错误?