Make sentences, using present participle and past participle clauses

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
   Encouraged      Realizing      Recycling      Using   
1. public transportation instead of driving, we are reducing our carbon footprint.
2. the negative impact of excessive driving, we have started using public transportation.
3. paper and plastic, we are contributing to the reduction of waste.
4. to recycle more by our local council, we started recycling paper and plastic.