The program is like a window on the world ____ you sit by it and fix your attention on what it shows.
| A．if | B．as | C．while | D．unless |
_____, he cannot solve the word puzzle.
| A．Hard although he tried |
| B．He tried hard although |
| C．However hard he tried |
| D．As he tried hard |
The girl spent as much time as she ____ her lessons.
| A．could going over | B．could go over |
| C．went them over | D．went over |
In the school where I study English ____.
| A．is there | B．has no good teachers |
| C．is taught | D．is the most beautiful |
In the traffic accident, his father came close to__________.
| A．be killed | B．being killed | C．kill | D．killing |
Yang Liwei spent the whole evening talking about the things and persons ________ none of us has ever heard of in CCTV station.
| A．which | B．who | C．whom | D．that |