He used ___ on the right in China, but soon got used ___ on the left in England.
If there ______no buying and selling of animals, there ______no killing in nature.
Many accidents_____ by careless drivers last year.
With the help of the Internet, information can _____every corner of the world quickly.
—What do you think of tomorrow’s football match?—_____difficult for us_____ the match.
You look quite tired. You’d better _____a good rest.