Do you know when the plane takes off?为什么不用将来时when the plane will take off

问题描述:

Do you know when the plane takes off?为什么不用将来时when the plane will take off

此时用将来时和现在时都是正确的,但是对于计划好、安排好或者必然发生的事情,可以用一般现在时代替将来时!比如:It's Sunday tomorrow!