Put the verbs in brackets into the correct form

Exercise 4. Put the verbs in brackets into the correct form.
1. If you (be) ________________the president, what ________________ you (do) ________________to help the environment?
2. They get sick so often. If they (exercise) ________________more, they (be) ________________  healthier.
3. If I (have) ________________one million US dollars, I (build) ________________more parks in our city.
4. Ngoc’s mother is unhappy. If Ngoc (tidy) ________________her room every day, her mother (not be) ________________so upset.
5. There isn’t a garden at our house. If there (be) ________________, we (grow) ________________ vegetables.