Помогите решить по британскому

21. What I was looking was a historical novel by Walter Scott.
2. What I want to read is The Lord of the Rings by Talkien.
3. What he bought was a new book by Christopher Paolini.
4. Who she wrote a letter was her favorite author Jacqueline Wilson.
5. Why I rang you was I wanted you to ask a reference book.
6. What we need is to go to the library.
7. Where we want to go is Charles Dickens Museum .