1. my friend's car我朋友的汽车 

2. the Smiths' car史密斯一家的汽车 

3. our nation's history我们民族的历史 

4. the neighbours’lawn邻居们的草坪 

5. Mr. Jones's bike琼斯先生的自行车

6. the princess's dress那位公主的衣裳 

7. Robert Burns's poetry 罗伯特•彭斯的诗 

8. Charles's toy 查尔斯的玩具

9. the childrens books 孩子们的书

10. the womens hats女人们的帽子 

11. my brothers-in-law's letters 我姐夫、妹夫们的信件

12. two weeks' winter vacation 两星期的寒假

13. Rogers and Hammerstein's musical (one musical owned by both Rogers and Hammerstein) 罗杰斯与哈默斯坦的音乐喜剧

14. Rogers's and Hammerstein's musical (Each had/has a musical.) 罗杰斯和哈默斯坦各自的音乐喜剧

15. Bill, jack, and Bob's office (The three together own the office.)

比尔、杰克和鲍勃（三人共有）的办公室

16. Bill's, Jack's, and Bob's officer (Each of the three has an office.)

比尔、杰克和鲍勃各自的办公室

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