She_______ an old friend of hers yesterday while she was shopping at the department store.
| A．turned down | B．came across |
| C．took after | D．dealt with |
Today, we’ll discuss a number of cases __________ beginners of English fail to use the language properly.
| A．which | B．as |
| C．why | D．where |
The book was written in 1946, __________ the education system has witnessed great charges.
| A．when | B．during which |
| C．since then | D．since when |
—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 |