The teenager sat there for hours ______ end in silence after he was put ______ prison.
| A．on; into | B．in; into | C．on; to | D．in; to |
Not until he left his home __________ to know how important the family was for him.
| A．did he begin | B．had he begun |
| C．he began | D．he has begun |
If a lot of people say a film is not good, I won't bother to see it, or I'll wait __________ it comes out on DVD.
A. whetherB. after
C. thoughD. until
It was not until near the end of the letter __________ she mentioned her own plan.
| A．that | B．where |
| C．why | D．when |
The word "USA" __________ "the United States of American".
| A．is short of | B．has short of |
| C．has short for | D．is short for |
It's surprising that your brother __________ Russian so quickly—he hasn't lived there very long.
| A．picked up | B．looked up |
| C．put up | D．made up |