Eric used to on weekends, but now he is used to math with Frank.

Why didn’t you go to the concert ?—–I ____a game between two American basketball teams

It has been proved ____ several new kinds of medicine____ a positive effect on the cure of H7N9.

When asked why he went there, he said he was sent there _____ for a space flight. [ ]

－How is George now －I hear the manager ______ him a good job, but he refused it.