The door___,so it requires___at once.

The door___,so it requires___at once. Keep the door___(open) It's a bit too hot in the room .Please keep the door___? the key to my door___.i have looked for it every where,but i rolling in the deep 或者yesterday once more 或者 beat it 或者so mu Once so beautiful, and now it wither in the future at a loss he used to sleep with the door___(shut) it happend once in the blue moon the teacher spoke slowly so that they_____their work at once The research is so designed that once--begun----nothing can ____,so he stopped the car at once. The research is so designed that once _______nothing can be