Fill in the relative pronoun or adverb. Put commas where necessary. Write D for defining or ND for non-defining.

1. The photocopier **that (D)** is on the second floor is out of order. 2. Craig is the one **who (D)** found the mistake. 3. This is the restaurant **where (ND)** I had my birthday party. 4. I still remember the moment **when (ND)** we met as if it was yesterday. 5. The actress **who (D)** appears in this play won an award. 6. He won't tell me the reason **why (D)** he is leaving the company. 7. My best friend, **whose (ND)** brother is captain of the school team, is a great swimmer. 8. The community centre **where (D)** I have my art class is closing down. 9. I left my homework **which (D)** was due to be handed in today on the bus. 10. We really enjoyed that summer **when (D)** we went camping.