G7_U3_Past simple

When cut/cutting down, trees release a lot of carbon dioxide into the atmosphere.

Waited/Waiting for his classmates, Tuan made some changes to their presentation on deforestation.

Affected/Affecting badly by soot produced by their old coal stove, they decided to switch to an electric stove.

Impressing/ Impressed by Daniel's work, The teacher gave him the highest score.

Encouraged/Encouraging by students’ interest in climate change, the Green Club members organised many activities to raise awareness of the issue.

Feeling/ Felt sick, Sam left school early.

Known/Knowing that Mai is interested in environmental issues, Mike bought her a book about global warming.

Burnt/Burning in open fires, rubbish and organic waste produce a great amount of black carbon.

Used/Using widely for cooking and heating, sunlight and wind can reduce use of fossil fuels

Done/Doing research on climate change, Mike became interested in environmental studies.

Talking/ Talked on the phone, they forgot everything around them.