Complete the sentences using "if" and "when"
1. If pollution ( to distrub) the balance in nature all living things (not to live) in harmony.
2. If the air and the water are polluted. Many species of plants and animals ( to disappear )
3. We ( to put) up a tent when we (to go) to the camp
4. When we (to go) camping we never ( to make) campfires.
5. If we (not to pay) attention to pollution, our Earth (not to be safe) to live in.
HELP ME PLS!!!!
1. disturbs......wont live
2. will disappear
3. shall put........go
4. go.....make
5. dont pay.....wont be safe
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