1. If today were Sunday, we (not have) …………………….. to work like this. 2. Look at those clouds – I think it (rain)……………………….…….. 3. By the time I( arrive)………………the airport, my husband( wait)……………..for me for an hour. 4. If the trees (be not)…………..…….watered daily, they will die. 5. Many houses (destroy)………………….……in the hurricane last night in Nghe An. 6. If the students reviewed all lessons, they (do)………………..the test well. 7. After the thief (leave)……………..……….the house, the police (come)…………..…….. 8. …Has…..Lan (learn)………..….… English for 2 years? - No, she (learn)……..…. for 3 years. 9…….…….your mother (read)……………… book every night? - No, she (watch) ……..……TV. 10. Factories (not dump) ………………..…….. waste into rivers if the government fines them. 11. If we use water carefully, more people (have) ………….…………..fresh water. 12. He wouldn’t be ill if he (not smoke)………………………………… a lot. 13. Most people (leave) ………….………….before the volcano (erupt)…….…………... 14. After I (finish)…………………………..the lesson, Lan (go out)………………………... 15. This house ( build)…………………………. in 2015. 16. If you (be)………..……..…. the president, what …..……..you (do)………..…….? 17. They get sick so often. If they (exercise)………… more, they (be)……….….. healthier. 18. If I (have)………… one million US dollars, I (build)…………….. more parks in our city.