My cousin Gorge went to Shanghai in _____ twenties in ____ 1980s, and has lived there ever since.
—I often see him working hard in his spare time. —________he has won the scholarship from time to time.
Years ago we didn't know this, but recent science study ________that people who don't sleep well soon get ill.
Is it only on the world market ________we can prove the competitiveness and quality of our goods?
—We need a person badly to be in charge of this design.—________ the new comer have a try?
I wonder why Jack always gets good marks when he does only ________ the others.