When he comes, I will have left here.(正确)
表时间的副词子句,其未来动作用现在式代替未来式
问题:
The day will come when we will be able to travel in outer space. (正确)
The day will come when we travel in outer space.(错误)
为什么"when we will be able to travel in outer space"不是表时间的副词子句?
给100P高手 谢谢@@