E1: Write full sentences:
1. If /we /plant /more trees / neighbourhood.
2.If /we /cycle /school /everyday /we /keep /air /clean and fresh.
3.If /we /keep /hunt /animals /they /disappar /soon.
4.If /we /cut down /all /trees /there /floods?
5. If /we /use /buses /we /reduce /pollution.
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