. Put the verbs in brackets into correct form to complete the sentences. 1. If the local people drink the contaminated water, they (have) .................. health problems. 2. If there were more trees in this area, the air (be) ................ fresher. 3. All the aquatic animals (die) .................... if people don’t stop dumping sewage into the lake. 4. Global warming (not happen) ............... if there weren’t too much carbon dioxide in the atmosphere. 5. If the sun (shine) ......................, we will walk to the mountain. 6. If people (stop) ................... digging the street, there wouldn’t be noise pollution in this area. 7. People use a lot of cars and motorcycles. If people (reduce) ...................... the use of motor vehicles, there (be) ..................... less serious air pollution. 8. If you (not read) ................... these articles, you (not know) ....................... the facts about water pollution. 9. If I (be) ........................ the president, I (remove).................... all the factories out of the city. 10. Your brother (have) ....................... hearing problems if he (listen) ................... to too loud music