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Exercise 5 Past Simple, Past Continuous, Present Perfect, Past Perfect:
1. Last year governments (to pass) new laws to stop the plants. 2. Factories (to pollute) our water with waste all last years. 3. She just (to recycle) water from the puddles. 4. By 5 o’clock yesterday the boss (to pour) chemicals into the rivers. 5. He (not to clean) the yard from litter last month. 6. The pipes (not to leak) from September to April last year. 7. Many cities (not to save) water yet. 8. Before going to bed the plumber (not to repair) pipes. 9. Why water supplies (to disappear) there last month? 10. What he (to paint) all day yesterday? 11. You ever (to come) to this old barn? 12. Where he (to become) popular before Christmas?
Exercise 5 Past Simple, Past Continuous, Present Perfect, Past Perfect:
1.Last year governments passed new laws to stop the plants. 2. Factories were polluting our water with waste all last years. 3. She has just recycled water from the puddles. 4. By 5 o’clock yesterday the boss had poured chemicals into the rivers. 5. He did not clean the yard from litter last month. 6. The pipes were not leaking from September to April last year. 7. Many cities have not saved water yet. 8. Before going to bed the plumber has not repaired pipes. 9. Why did water supplies disappear there last month? 10. What was he painting all day yesterday? 11. Have you ever come to this old barn? 12. Where had he become popular before Christmas?