Only when （ ） in the afternoon （ ） able to leave.

（ ） when she started complaining.

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

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

The kidney transplant operation was _____ complicated, so the operating team had to take special care to ensure its success.

（ ） student with a little common sense should be able to answer the question.

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

Air pollution is obviously one of the major _____ of city life.

My children are looking forward to （ ） a trip to Paris.

Having been found guilty, the man was given a severe （ ） by the judge.

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

Do you feel like_____today?