There used to be an old stone bridge across the rive,___________?
热心网友
可以把used to ，看作组动词，所以用usedn't there或者，可以把used to 行为动词，用didn't there,两种都可以的，好了，加油吧
热心网友
wasn't it
热心网友
didn't it
There used to be an old stone bridge across the rive,___________?
可以把used to ，看作组动词，所以用usedn't there或者，可以把used to 行为动词，用didn't there,两种都可以的，好了，加油吧
wasn't it
didn't it