Put the verbs in brackets into the correct tenses of the conditionals.
1.If we (recycle) ________ more, we will help the Earth.
2. Factories (not dump) ____________waste into rivers if the government fines 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 it (rain) ______________ , the children ( not, go) ______________ for a walk.
7. If she (not, read) _____________the novel, she (not pass) _____________the literature test.
8. If we _____________(take) the bus we ____________(not arrive) in time.
9. If Dick ____________(not, buy) the book, his friends _____________ (be) angry with him.
10. If Tom _________(not, tidy up) his room Victoria ________(not help) him with the muffins.