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?

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/03 13:34:06
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?

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?
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?

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?
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.