AJUTOOOOORRRR!!!!
a)fill in must or mustn't:
1. We ..... pollute rivers
2. we .... use only unleaded petrol
3. We .... recycle paper, glass, etc.
4. we .... create so mutch rubbish
5. we .... destroy rainforests.
6. we .... protest wildlife.
7. we .... drop litter on beaches
8. we .... let factories pollute the air

b) use the rules above (1-8) and the prompts below to make sentences, as in the exemples.

●fewer fish will die

if we don't pollute rivers, fewer fish will die.

● we will reduce air pollution

if we use only unleaded petrol, we will reduce air pollution

●we will save important resources

●the planet will be cleaner

●rare plants and animals will survive

●we will save endangered species

●beaches will be clean and safe

●the atmosphere will be cleaner​