1) Mr. Smith's house; 2) the girls' doll;3) Rembrandt's works; 4) the baby's toy; 5) the employees' meeting; 6) those women's bags; 7) our boss's orders; 8) the children's books; 9) my parents'cottage; 10)her cousin's garage.Упр. 21. My friend's room. 2. My friend's rooms. 3. My friends' room. 4. My friends' rooms. 5. This engineer's son. 6. Our factory's engineers. 7. Our teacher's daughter. 8. Those student's dictation. 9.Your economists' letters. 10. The seventh lesson's words. 11. These people's children. 12. Mary's friend. 13. Peter's letter. Упр. 31) Kate and Mary's mother2) My aunt Mary's children3) Picasso and Dali's paintings4) the commander-in-chief's gun 5) Ivan the Terrible's times (здесь не уверен)6) The Minister of Foreign Trade's speech7) The Herald Tribune's correspondent8) my father's-in-law flat9) Henry the Eighth's wives10) Saudi Arabia's oil wells