I _______ have been more than six years old when the accident happened.
Why not stay at home ______ the road is so slippery after the heavy snow?
It is such ______ honor to take part in ______ celebration, so how could I make any mistake?
At the conference, Premier Li Keqiang urged all the government departments ______ effective measures to improve work efficiency.
_______to sunlight for too much time will do harm to one’s skin.
We tried to find a table for seven, but they were all _________.