VII.
1.Water pollute in the lake has made the fish die. => pollution
2. Factories don’t dump waste into rivers if the government fines them heavily. => won't
3. The earthquake occurred at midday when many people had had lunch. => were having
4.Hundreds of houses destroyed after a tornado hit the small town of Texas. => were destroyed
VIII.
1.Students are more aware of protecting the environment. Teachers teach environmental issues at school.
=> If teachers teach environmental issues at school, students will be more aware of protecting the environment
2.People speak English all over the world.
=> English is spoken all over the world
3.Many rivers and lakes are poisoned.Factories produce waste and pour it into rivers and lakes.
=> Because factories produce waste and pour it into rives and lakes, many rivers and lakes are poisoned.
4.They provided food then cleared up the debris.
=> After they had provided food, they clearned up the debris.