求 used to be 的反意疑问句
问题描述：
求 used to be 的反意疑问句
rt
任意举几个例子就行了.
答
They used to be friends,usedn't they?/ didn't they?The girl used to be taller than you,didn't she/usedn't she?It used to be a factory,usen't it?didin't it?