Răspuns:
1. My sister Jane, **who** lives in New York, has made a lot of friends there. (ND)
2. The café, **which** opened near the university, is a good place to meet people. (ND)
3. Paul, **who** has just moved in next door to me, has four sisters. (ND)
4. It's not always easy to meet people **who** like the same things as you. (D)
5. Of the six flats, the one **that** Sally shares with four friends is the smallest. (D)