Ex3:Put the verbs in brackets into correct form of conditional sentence type 1. (chia V trong ngoặc ở dạng câu điều kiện loại 1) 1.If people(pollute) the environment,a lot of animals(die) . 2. If water(consist) germs,people(get) ill. 3.If the pole(melt) ,huge land masses(be) under water. 4.Many precious animals(disappear) ,if people(cut down) trees. 5.If nuclear waste(throw) away,it (be) very dengerous. 6.Is the emission ò CO2 (continue) at high rate,the climate(destroy) . 7.We(save) the tress if the(save) paper. 8.If school (teach) about environmental problems,All students(know) how to protect environment. 9.If more people(travel) by bike or bus, we(not have) traffic jam. 10.If the government(fine) heavily to the facfories,they(not dump) sewage into the ocean.