before we do anything major,we should think twice

before we do anything major,we should think twice We should prepare well we do anything well 中间是填before还是after What should we do before meals?What should we do Think twice before you do. What should we do before meals? what should we do before we c_____ the road. what should we do before we travel by plane What should we do before we go to bod? what should we do before we travel by plane? what should we do before we enter a house in whant should we do before we travel by piane we should stop to think before ___(speak)our minds