There was used to be plenty of trees on both sides of the river.改乘WERE 还是直接去了

问题描述:

There was used to be plenty of trees on both sides of the river.
改乘WERE 还是直接去了

There was said 这个才是一起的 It's said 据说,一个道理 那个是错的

直接去掉
因为used to be里的be已经和开头的there组成there be 句型了