Complete the sentences with the verbs in the correct form, using Conditional II and Conditional III.
1. If we planted more new forests, we …….. wild animals.
a) save b) would save c) saved d) would have saved
2. If you had read these books, you ………… more about this environmental problem.
a) would know b) know c) would have known d) knew
3. If people had avoided damaging nature, many species of animals ………….
a) don’t disappear b) wouldn’t have disappeared c) disappeared c) would disappear
4. If she finished her research, she … …. in the conference.
a) would have taken b) take c) would take d) took