My train arrives in Shanghai at 10 this morning. The plane I would like to take from there _____ by then.
A.is leaving
B.will have left
C.has left
D.will leave
这道题的时态到底怎么回事?
请解释一下,谢谢!
參考答案:选B
将来完成时态。在陈述客观事实的时候,尤其是科学定理以及这种规定好的东西,用一般现在时态。时刻表是定好的,所以也要用一般现在时态。