Mr. Smith left home and went to Shenzhen in his twenties, where he _______ until the 1990s.
It is only after my father was long gone _____ understand his deep love for me.
. A growing number of people are beginning to believe that learning new skills and knowledge _____ more promotion opportunities.
His interests extended _____ the fine arts to international politics and philosophy.
—Mr. Smith _____ in Russia for 10 years. —No wonder he can speak Russian fluently and now teaches Russian in a Chinese college.
He chose to teach in a western province, though he _______ in the city for a better life.