Since we have become too dependent on the use of electricity, we have to find alternative sources of energy before fossil fuels run out.
Having become too dependent …, we have to find ...
15
Since Mai had refused Nam's offer of a lift in his car, she had to walk home.
Having refused …, Mai had to ...
20
After Ha had read some documents about Green Earth, she decided to join the organisation.
Having read …, Ha decided ...
15
Since the farmers used too much chemical fertilizer on their farm, they now have to drink polluted water.
Having used …, the farmers now have to ...
25
After she replaced all the light bulbs in her house with LED lights, she saved a lot of money on her electricity bills.
Having replaced …, she saved ….
15
After the students had learnt about the benefits of recycling and reusing, they started collecting waste paper, bottles, and cans to recycle and reuse.
Having learnt about …, the students started collecting …
25
Tony had rescued the kids from the fire. People admired him for that.
People admired Tony for having rescued the kids …
25
Someone had cut down the oldest tree in the park. The police suspected Mike of doing it.
The police suspected Mike of having cut down …
20
He had dumped lots of rubbish onto the beach. He denied it.
He denied having dumped lots of rubbish onto the beach.
25
You had saved the lives of hundreds of wild animals. Thank you for that.
Thank you for having saved the lives of … wild animals.
20
They had hunted and killed many wild animals. Later they regretted what they had done.
They regretted having hunted and killed …
25
The factory had dumped tons of toxic waste into the river. It was heavily fined for that.
The factory was heavily fined for having dumped ...
25
Denis had taken an active part in the Green Summer activities. He was rewarded for that.
Denis was rewarded for having taken an active part …
25
I have seen him before. I remember that.
→ I remember having seen him before.
25
'You've lied to us,' the villagers said. The politician denied it.
The politician denied having lied to the villagers.
25
Thanh had forgotten to turn off the gas cooker before he left his house. He admitted that.
