The factory was accused __________ having caused a higher level of pollution to the environment.

He was suspected ___________ having received presents from the local companies and ignored their violations of the environmental law.

Those farmers admitted ___________having used more chemical fertilisers than needed.

He forgot ________ promised to cut down on the carbon dioxide emissions into the atmosphere.

I remembered hạving __________ off the lights before leaving home.

He regretted not__________ registered for military Service last spring.

The local residents suspected the authorities ____ having kept the pollution level secret from the local people.

Thank you for having________ the information about global warming.

He regretted __________ killed and eaten several rare species.

His company was fined ___________ dumped tons of toxic waste near the residential area.

I remember _________ advised you to stop hunting endangered animals.

The local authorities were blamed ______ignored the pollution issues in the area

___________ the desalination plant, the company could offer an effective solution to the problem of water scarcity.

The public praised the local farmers for ___________ millions of trees on the surrounding hills.