The news is made ________ to everyone throughout the world that our Chinese athletes have won 5 gold medals in the Winter Olympics.
It’s a common sense _____ Canberra, _____ between Sydney and Melbourne, is the capital of Australia.
– I wonder how much you charge for your services. -- The first two are free________the third costs $30.
--Would you please explain to me about the difference between the two phenomenon? --I’m sorry, but that’s just _____ I’m puzzled about.