5.My father was out of the city when the sandstorm came.He was very glad to 【have missed】 it.
问题描述：
5.My father was out of the city when the sandstorm came.He was very glad to 【have missed】 it.
5.My father was out of the city when the sandstorm came.He was very glad to【 have missed 】it.6.The building has【 to be finished】 by the end of the year.
为什么是have missed而不是had missed?
为什么是has to be finished而不是has been finished?
答
5 to 后面如果要接动词,就一定是接动词原形,不管时态或者第几人称
6 这个不是现在完成时时态,因为如果是完成时态,表示曾经做过什么事情,后面不会有具体时间的,完成时都这样,一般会接already,yet之类的.这里的has to be finished 表示需要在年底完成,是表被动.