— I missed the earliest flight in the morning. It was really a pity. —You _________ to the airport by taxi instead of by bus.
December is _______ month of the year.
This took place in the ______ .
It is only _____ from my home to the train station.
There are ______ in this building , I live on ______.
The water behind the Three Gorges Dams (三峡大坝) should be ______ higher than downstream(下游)。