Exercise 1: Who 1. Tom had been driving all day. He was tired and wanted to stop. 2. Mary didn't know anything about mountains. She thought it would be quite safe to climb alone. 3. I met Mary. She asked me to give you this. 4. I met a woman. She can speak 4 languages. 5. Do you know anybody ? He can play the piano. 6. The man is very friendly. He lives next door to us 7. The policemen stopped our car. They weren’t very polite. 8. The girl was injured in the accident. She is now in hospital. 9. I don’t like people. They are never on time. 10. The readers must have library cards. They want to borrow books.