the classroom is so bright now you should 什么the lights

the classroom is so bright now you should 什么the lights 改错The (lights) (in) the classroom (is) (bright) The classroom is enough bright.Pleaseturn off the lights.怎么改 The lights must___before you leave the classroom The sun is shining now(bright） Jane,please turnoff the lights-----you leave the classroom. All the lights in the classroom ____before you leave _________turn off the lights before you leave the classroom? remember（ ）the lights when you leave the classroom Before you leave the classroom,please ________the lights． Look!The classroom is big and bright的问句 What should you do when you see the red lights什么意思