11. 1. Ultimately و , you'll have to make the decision yourself. (ultimate) by his failure, (disappoint) 2. He is disappoimed 3. A person who is interested in conservation is a conserved 4. Air pollution 5. They test the (conserve) will increase if we use more and more oil and coal. (pollute) of the water here. (pure) limited 6. Everything has its 7. Some of the passengers on the bus were 8. He was noted for his politely 9. I have a number of complaint 10. He has a wide knalidge (limit) . (polite) Seriously injured in the accident. (serious) about the service in this hotel. (complain) of painting and music. (know)