—Are you glad that you came to Changsha? —Yes,indeed.I _____going to Shanghai or Shenzhen, but I’ve never regretted my decision.
I can't manage _____ a good night's sleep if I am to do a good day's work.
My argument is _____ on fact.
It is amazing that the little boy can swim _____ the river _____ 100 metres wide.
There are _____ to show that a new, different city is coming out of its dark past.
As is reported, it is 100 years _____ Qinghua University was founded.