Bonjour,
1. They might have created a national park before
2. They might have inhaled toxic fumes
3. They might have dumped the radioactive waste elsewhere
4. The ministers might have signed that agreement
5. The companies might have been allowed to saw trees
6. The oil might have spilt on the rocks and destroyed wildlife
7. They might have bought bio-degradable detergents
8. The average temperature might have risen
9. You might have demonstrated against the nuclear plant
10. The engineers might have been more interested in wind power
11. The children might have drunk that polluted water
Je t'ai fais les 5 premiers aussi
Bon Courage ; )