她知道去火车站的路。

She ___knows the way to the train station.

我从小就认识他，我们是邻居。

I've ___known him since childhood, we were neighbors.

她能分辨出真花和人造花的区别。

She can ___tell the difference between real flowers and artificial ones.

她经历过很多困难，所以知道生活的艰辛。

She has ___known many hardships, so she understands the struggles of life.

我确信他明天会来参加聚会。

I ___know for sure that he will come to the party tomorrow.