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1. This is the house where we often stay in summer.

2. I’ll show you the secondhand bookshop where you can find valuable books.

3. I have not decided the day when I’ll go to London.

4. He was born on the day when his father was away.

5. The book in which we can look up telephone numbers is a telephone directory.

6. This is a rare opportunity of which you should take advantage to get a better job.

7. The boy of whom you made fun is my cousin.

8. This matter, to which you should pay attention, is of great importance.

9. The man whom I respect most is my father. 

10. The man whose opinion I respect most is my father.

1 . This is the house where we often stay in summer.

2 . I’ll show you the secondhand bookshop where you can find valuable books.

3 . I have not decided the day when I’ll go to London.

4 . He was born on the day when his father was away.

5 . fThe book in which we can look up telephone numbers is a telephone directory.

6 . This is a rare opportunity of which you should take advantage to get a better job.

7  . The boy of whom you made fun is my cousin.

8 . This matter, to which you should pay attention, is of great importance.

9 . The man whom I respect most is my father. 

10 . The man whose opinion I respect most is my father.

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