____ modeling business is by no means easy to get into, the good model will always be in demand.
| A．While | B．Since | C．As | D．If |
—Where did you get to know her?
—It was on the farm ___ ___ we worked.
| A．that | B．there |
| C．which | D．where |
Some pre-school children go to a day-care center, ___ ___ they learn simple games and songs.
| A．then | B．there |
| C．while | D．where |
After graduation she reached a point in her career ___ ___ she had to decide what to do.
| A．that | B．what |
| C．which | D．where |
He was educated at the local high school, ___ ___ he went on to Beijing University.
| A．after which | B．after that |
| C．in which | D．in that |
We shouldn’t spent our money testing so many people, most of ___ __ are healthy.
| A．that | B．which |
| C．what | D．whom |