before 引导时间状语从句Students _____ to close the windows before they leave the physics and chemistry.答案说是are told ,为什么不是will be told?
问题描述：
before 引导时间状语从句
Students _____ to close the windows before they leave the physics and chemistry.答案说是are told ,为什么不是will be told?
答
时态前后一致,句中没有暗示除一般时态以外的词,比如说动词的过去时态,will ,would等等,就用一般时态.