II. Give the correct form of the verbs in brackets. (1 pt)
1. We’ll save thousands of trees if we (not waste) paper.
=> ____________________________
2. If there was no fresh water in the world, what (happen)?
=> ____________________________
3. Most people (leave) before the storm struck the city.
=> ____________________________
4. A lot of rivers and lakes in this area (contaminate) every year.
=> ____________________________
II. Give the correct form of the verbs in brackets. (1 pt)
1. We’ll save thousands of trees if we (not waste) paper.
=> We’ll save thousands of trees if we don’t waste paper.
(Conditional Type 1)
2. If there was no fresh water in the world, what (happen)?
=> If there was no fresh water in the world, what would happen?
(Conditional Type 2)
3. Most people (leave) before the storm struck the city.
=> Most people had left before the storm struck the city.
(Past perfect)
4. A lot of rivers and lakes in this area (contaminate) every year.
=> A lot of rivers and lakes in this area are being contaminated every year.
(Passive voice)