______time went on, the people in the area came to realize how serious the environment had been polluted.
The famous reporter, who is said to have gone back to America last year, _____in China for almost twenty years.
–What would you like to eat here? -- ____ but spaghetti, which is not to my taste.
Tom’s parents were very worried because ___little effort he made could hardly achieve the goal to be ___ captain of the team.
____ surprises us most is that she doesn’t even know ____ the difference between the two lies.
--- Do you think living in the country has advantages? --- ____.