1.If we (recycle) ____recycle____ more, we will help the Earth.
2. Factories (not dump) ______won't drump________waste into rivers if the government fines them heavily.
3. If people travel to work by bus, there (be) _______will be_______fewer car fumes.
4. We (save) _______will save_________thousands of trees if we don’t waste paper.
5. If we use water carefully, more people (have) ________will have______fresh water.
6. If the factory ( continue) _______continues_________ dumping poison into the lake, all the fish and other aquatic animals will die.
7.If we recycle more, we (help) ______will help__________ the Earth.
8. If people (travel)_______travel_________to work by bus, there will be fewer car fumes.
9. We will save thousands of trees if we (not waste)_______don't waste________ paper.
10. Factories won’t dump waste into rivers if the government ( fine) _______fines________ them heavily.
