Exercise: Combine these sentences using Adj + that clause : 1. The air in the city is ---------------(pollute) 2. Please listen to the lecture ____________ (care) 3. An accident happened because of driving ____________ (care) 4. He was ____________ (disappoint) that they were not coming. 5. Air and water _____________ (pollute) can make people fall ill. 6. Plastic bags will cause _____________ (pollute). 7. Mr. Brown is one of the ___________ (conserve) 8. We should make our world _____________ (pollute) 9. We must learn about keeping the environment ……………………. . 10. Environment …………………… is everybody’s responsibility. (protect)