1.If we (recycle) ________ more, we will help the Earth.
2. Factories (not dump) ______________waste into rivers if the government fine them heavily.
3. If people travel to work by bus, there (be) ______________fewer car fumes.
4. We (save) ________________thousands of trees if we don’t waste paper.
5. If we use water carefully, more people (have) ______________fresh water.
6. If the factory ( continue) ________________ dumping poison into the lake, all the fish and other aquatic animals will die.
7.If we recycle more, we (help) ________________ the Earth.
8. If people (travel)________________to work by bus, there will be fewer car fumes.
9. If he (study) ________________ harder, he can pass an exam.
10. She may be late if she (not hurry) ________________.
11.If you study harder, you (pass) ________________ the exam.
12. If you are kind to me, I (be) _______________ good to you.
recycle
won't dump
will be
will save
will have
continues
will help
travel
studies
won't hurry
will pass
will be
