We showed great pity to the poor old man, for ________ life was hard in the past.
--- Some more wine? --- Thank you. ______. I have to drive home.
The evidence has ______ the first witness’ story.
In these years, the shortages of water has become a ______ problem.
---______ he have been chosen as captain of our school football team? ---Yes, he______. Can’t you see he’s wearing an armband?
China has been pushing the reform of public hospitals______ all its citizens.