John _____ knowledge of radio just by staying around the radio station.
| A．caught on | B．worked up | C．took up | D．picked up |
______it is to jump into a pool or go swimming in the sea when you visit Hawaii!
| A．What fun | B． What a fun | C． How fun | D．How a fun |
_______ the rain falling so hard, it becomes more and more difficult to carry on the rescue work.
| A．Since | B．As | C．With | D．For |
Chinese President visited AIDS patients in Beijing's Ditan Hospital on the World AIDS Day, ________ was on Dec.1,2010, and ______ theme was to give all the AIDS patients medical care.
| A．which; whose | B．which; of which | C．when; whose | D．on which, its |
We had wanted to finish our task by noon, but it didn’t quite _____________ as planned.
| A．find out | B．give out | C．hand out | D．work out |
____our mother will allow ____ to see a film after supper?
| A．Who do you think, leaving | B．Who do you think, to leave |
| C．Do you think who, leaving | D．Do you think who, to leave |