Ex1. Give the correct form of these verbs. 1.If you (come)……here in Sping, You will have a chance to go to the village fair. 2. If I see him, I (give)………him a gift. 3. If Hoa ( finish)………the dress before Saturday, she’ll give it to you. 4. The child will die if nobody (send)……him for a doctor. 5. If you (go)……away, please write to me. 6. If it (not rain)………,I will go to the movies. Ex2. Complete the sentences with the verbs in brackets. Use conditional sentences type 1. 1. If the air in a city________ (get) very polluted, it can make people’s eyes burn. 2. If we dump all sorts of Chemicals into rivers, we________ (not be) able to swim in them in the future. 3. Many wildlife habitats will be destroyed if people________ (keep) polluting the environment. 4. If we all use public transport more, we________ (help) reduce air pollution. 5. If we________ (not stop) over-fishing the oceans, many species________ (become) extinct. 6. If everyone________ (recycle) paper, metal and glass, we ________ (not produce) so much rubbish. 7. We________ (have) dirty seafood if we________ (dump) rubbish into the sea. 8. If global warming________ (continue), temperatures________ (rise) even higher. 9. If light pollution________ (keep) growing, you________ (not be) able to see even the Big Dipper at night. 10. We________ (threaten) our own existence if we________ (not cut down) the waste rapidly.