–Jack is good at writing short stories.----So he is. But he writes ______ than us. So he can’t get good grades in writing.
This room is much _________ than that one.
— have you danced? —Since I was six.
While I ________to the programs, my mother ________outside.
It ______ the workers about 20 months to build the Huhang highspeed railway.
He was _______ pain, __________ he didn’t cry.