—He should have come to join in the thorough cleaning.
—He _____. I don’t think it was his turn.
A. needn’t have to B. needn’t have
C. didn’t have to D. doesn’t need to
It has been announced that all the students ____ put on masks before going to school in case they are infected with SARS virus.
A. shall B. will C. need D. may
Pressed from his parents, and _____ that he has wasted too much time, the boy is determined to stop playing video games.
A. realizing B. realized C. to realize D. being realized
Lydia doesn’t feel like _____ abroad. Her parents are old.
A. study B. studying C. studied D. to study
A new study indicates that basic steps taken by people daily can go a long way in ____ the greenhouse gas emission.
A. cutting down B. taking down
C. pulling down D. breaking down
—Did you call on any of your old friends when you returned to your hometown?
—_______ of them. They were all very busy.
A. Nobody B. None C. Both D. Neither
