must be taken out at time of booking

you must be out of Old people must be taken good care of by us The machine must be out of order Many desks are to be taken out of the hall. On no account ____ be taken out of the library. our books must be taken care of by us,还是our books must be ta be taken a waste of time 是固定用法吗? The baby should at home A be taken care B be taken care of C I must be stupid,must be crazy,must be out of my mind 是哪首歌里的 I must be stupid,must be crazy,must be out of my mind什么意思 Time must be a valid time of day The wouded and the sick must be taken to--hospital at once 用