Peopledon'tstandupinclassuntilyou()A.weretoldB.aretoldtoC.aretoldD.weretoldto选什么,为什么

Question

People don't stand up in class until you ( )
A.were told B.are told to C.are told D.were told to
选什么,为什么

Answer 1

选B吧
are 是要和 前面的现在时保持一致,told to 其实是省略了stand up,
"tell sb.to do sth."
People don't stand up in class until you are told to (stand up).
个人见解 希望没有误导,如果错误 请千万告知~先谢过啦~