Learn about using non-defining relative clauses.

Practice 1: non-defining or defining relative clauses.

Complete the sentences below with a non-defining relative clause (the first option) for extra information or a defining relative clause (the second option) for essential information.

1. Teachers ... should get more money.

2. Google ... is used to find information on the internet.

3. Websites ... aren't allowed in my college.

4. She gave me a present ... .

5. I went to Ottawa ... .

6. I don't like people ... .

Practice 2: Who, which, that or nothing?

Choose the best way to complete these sentences. Sometimes both answers are possible, so you should choose "both".

  • The clothes  aren't dry yet.
  • The cat  is really cute.
  • Mr Watson, , is a spy.
  • The food  was disgusting.
  • My car, , has never broken down.
  • I hate people 
  • Tom's party, , was fantastic!!!
  • This website, , started in 2010.