В пасивный залог 1. People (told/are told) not to spend much time in di-
rect sunlight.
2. Water in many rivers nowadays (is polluted/was pol-
luted).
3. Rivers and oceans (are used/is used) as dumps, which
is dangerous.
4. Fish and reptiles can't live in many rivers and lakes,
which shows that they (are poisoned/will be poisoned).
5. Factories and plants often (pour/are poured) their
waste into lakes and rivers.
6. Poisoned fish (may be eaten/must be eaten) by people,
which is dangerous.
7. To make the air clean we (need/are needed) good fil-
ters at nuclear stations.
8. Nuclear-poisoned fish (might be eaten/can eat), which
is not safe.
9. Nuclear pollution (can be seen/can't be seen).
10. What caused/is caused) this awful destruction?
