—Can I speak to Mr. Wang, please?—________
—Where did you get to know her?—It was on the farm __________ we worked.
Some pre-school children go to a day-care center, __________ they learn simple games and songs.
After graduation she reached a point in her career __________ she had to decide what to do.
We shouldn’t s0pent our money testing so many people, most of __________ are healthy.
Last week, only two people came to look at the house, __________ wanted to buy it.