Write the verbs in the appropriate forms of Conditionals.
1. If people could prevent all wars, it safer to live in the world. (be)
2. If all weapons disappeared, peaceful citizens . (not die)
3. If I in school competition, I will take the first prize. (participate)
4. If the government didn’t interfered with science, it faster. (develop)
5. If all the people did more to protect our environment, some ecological problems solved. (be)
6. If I you at the cinema, I would come up to say Hello. (see)
7. If you to your English teacher attentively, you will do the test correctly. (listen)