【单选题】Look at the picture. Can you see some boys ______ basketball? [ ]
【多选题】导游在执业过程中应当携带( )、佩戴( ),开启( )。
【单选题】There ______ some boys on the playground.
【简答题】Some agers never even read a newspaper, ______ a book; they spend muchtime playing online s though. A) let out B) let alone C) let go of D) hold fast
【单选题】The missing boys were last seen ______ near the river. [ ]
【多选题】公交集团公司火灾事故处置方案》制定的处置原则为()地处理公交集团公司发生的火灾事故。