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Exercise 4: Combine the pairs of sentences, using relative clauses.
1. I lent him a book. It was written by Daniel Defoe.
> The book .
2. A nutritionist is an expert. A nutritionist studies the relationship between foods and health.
>A nutritionist is.
3. My friend has decided to buy a motorbike. His bicycle was stolen last week.
> My friend ..
4. "Who Wants to be a Millionaire?' is a TV show. It is very popular.
5. Yoga is a type of exercise. Many people enjoy yoga.