Task 1. Choose the necessary word. 1. My sister, who/ which is very beautiful, is arriving today. 2. He's bought the toy who/ that she was looking for. 3. Jerry's father has been building his country house for/since ten years. 4. Alex wanted a car for/since her last birthday. 5. The textbook (wrote/was written) by Andy. 6. Five people (have killed/have been killed) in a plane crash. 7. A famous designer (was built/built) the bridge. 8. Mikki _______ play the piano very well. And what about you? a) can b) should c) must 9. _______ he help you with this task? a) Could b) Must c) May 10. It's raining. You _______ take an umbrella. a) can't b) don't have to c) should