Complete the sentences

• 1. I didn't study very much so I didn't pass my Maths exam.
• 2. My uncle is a novelist. At the moment he's writing his third novel.
• 3. The Bilbao Metro won a prize for being the cleanest underground in Europe.
• 4. This is an official exam. If you pass you get a certificate.
• 5. At the CERN laboratories in Geneva scientists make important scientific discoveries.
• 6. Charles Darwin went on an expedition to the South Sea Islands.
• 7. Last summer my sister went to South America to do voluntary work for Oxfam.