2a
2. My boyfriend's car is German.
3. His girlfriend's mum is Polish.
4. Do you know Sandra's brother?
5. We live with my wife's parents.
6. Their son's friend earns a lot of money.
7. Is Adam's job dangerous?
8. Susan's uniform is very ugly.
2b
2. parents'
3. woman's
4. Teacher's
5. Barbara's
6. grandparents'
7. Richard's