when you ____ the office,you'd better _____ that the lights

You'd better ( ) back to the office. You'd better turn on the lights.改为否定句 When you read the book,you’d better make a mark _____ you ha 20.When you read the book,you' d better make a mark _____ yo 单项选择1.You should _____ the lights when you leave the room.A. You should ____ the lights when you leave the room.A.turn on Remember _____ (turn) off the lights when you leave the clas when you cross the road,emember ____ the traffic lights firs Remember to turn off the lights when you leave the room ____ You can go ____(cross) the street when the traffic lights ty if和when的区别在_____ the traffic lights turn green,you can go ac You'd better _____ (not play) in the classroom.