Once there was only one airport in shanghai.(改写句子） Once there_____ ______be only one airport i
问题描述：
Once there was only one airport in shanghai.(改写句子） Once there_____ ______be only one airport i
答
There used to be one airport in Shanghai
答
I want to go to the airport but I don't know the way to the airport
答
used ,to
答
used to