there used to be walls around the city of beijing改为一般疑问句
there used to be walls around the city of beijing改为一般疑问句
There used to be lots of old city walls in beijing 的反意疑问句
There used to be lots of old city walls in Beijing.反意疑问句如何用?
There used to be three telephones on the desk.(改为一般疑问句)
the little girl used to be shy 改为一般疑问句
There used to be a clear river across the city 改一般疑问句并做否定回答
There used to be a big tree in front of the house.(改为一般疑问)
there used to be river in front of the city didn't there?这句话
there used to be a lot of trees around the village,为什么用 didn
There used to be a lot of pandas 怎样改为反意疑问句
there used to be 一般疑问句是used there to be
She used to be an English teacher.改为一般疑问句