Question

      a lot of trees in this area, but now we can see a museum instead.

A．There used to have	B．There used to be
C．There used to having	D．There used to being

Answer 1

B

此題重點考查be used to doing sth和used to do sth 兩個句型結構的區別和意義。前者是習慣做某事，后者表示過去常常做某事，現在不做了。