There ________a big riber in front of the house,but It has turned into farmlands.A.used to have B.
问题描述：
There ________a big riber in front of the house,but It has turned into farmlands.A.used to have B.
There ________a big riber in front of the house,but It has turned into farmlands.A.used to have B.used to be C.IS used to having D.is used to be
答
这里选择B
there be 有
used to do 过去常常做某事
be used to doing 习惯于做某事
be used to do 被用来做某事