Here you have two links to two documents. The first one, easier where you have to fill the gaps with the right relative pronoun and the second one, where you have to join two sentences with a relative clause and make the necessary changes.
easy relative pronouns exercise
When you finish , you can listen to some different songs which have relative clauses. Note that there are also questions words. It is important to remember that relative pronouns always go after the word they refer to.</ </>;