Work in pairs. Think what people can do to reduce climate change.
Complete the table. Use mustn't, could, may, should, shouldn't.
problems
actions we can take
1) People burn old leaves. It (1) ... give CO2 gas 1) We (2) ... burn old leaves.
to the air
2) People burn hay in the fields. It (3) ... start fires. 2) We (4) ... burn hay.
3) Birds and homeless animals in winter do not 3) We (6) ... feed the birds in winter.
have food. They (5)... die.
4) We use a lot of spray for body and hair. It creates 4) We (7)... use it much. We (8) ... use
greenhouse gas.
other hygiene things.​