1) if you go,I.....(come) with you
2) Unless we help endangered animals,they.....(become) extinct
3) If you recycled your paper,you......(help) the environment
4 If acid rain falls in a lake,if......(pollute) the water
5) if we chop down trees,animals.....(lose) their homes
6) If I were you,I....(recycle) more
7) If temperatures rise above 0°C,ice.....(melt)
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Sinh Học lớp 12
