Please dont stand up in class until you.A. were told toB. are told toC. were toldD. are t

Please don't stand up in class until you .
A. were told to
B. are told to
C. were told
D. are told

A. were told to(答案→)B. are told toC. were toldD. are told解析：句意；课堂上，在有人叫你之前，请你不要站起来。结合语境可知下文从句描述的是可观性的动作，故用一般现在时态。主语是动作对象，故用被动语态。Tell后面接带to的不定式做宾语补足语，结合语境可知本句不定式符号不能省略，故选B。

和我的回答一样，看来我也对了

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