UNIT 6. NATURE AND THE ENVIRONMENT » Стр.168 (2)

Choose the correct relative pronoun to complete the sentences. 1. Mr. Smith, who is my friend, has worked in the National Reserve for five years. 2. The Askania Nova, which I visited last year, is a great home for wildlife. 3. I finished reading an article about climate change that was really interesting. 4. An environmental conference which will take place in Berlin next Monday is rather important. 5. I finished reading the book about nature, which was made into a film. 6. Pesticides are chemicals that are used for killing insects.