（ ） the past year as an exchange student in Hong Kong, Linda appears more mature than those of her age.

Fresh air, enough exercise and nutritious food （ ） to good health.

When Mary paid the bill, she was given a _____ for her money.

（ ） has already been pointed out before, English grammar is not a set of dead rules.

She （ ） tell white lies to make people feel better, to smooth things over.

Our company’s service is （ ） in nearly 80 countries around the world.

I got so tired that I just couldn’t move a step _____.

All the passengers （ ） in the accident were sent to the nearby hospital in no time.

He had never given a speech to so many people, so he felt（ ） .

You needn’t introduce him to me. I’ve met him on several _____.

Thank you for your letter of May 6, in which you _____ about the bicycles of Model 897.

—Professor Wang, must I hand in the paper this week? —No,（ ） . You can hand it in next week.