Passive Voice

Extreme weather conditions (to cause) by climate change in recent years.

• have been caused
• has been caused
• were caused
• are being caused

New Orleans (to hit) by a huge hurricane in 2005. 

• has been hit
• was hit
• were hit
• is being hit

Experts believe that more and more places (to affect) by climate change in the future

• are being affected

• are affected

• will be affected

• will have been affected

A lot (to write) about what governments and businesses should do to slow down global warming. 

• is written
• was written
• have been written
• has been written

I want the work (to finish) by noon.

• to finish
• to be finished
• be finished
• to have been finished

The rubbish bins (to empty) this morning.

• were emptied
• are emptied
• have been emptied
• will empty

A new road (under construction) now.

• is under construction
• is constructing
• was being under construction
• is being under construction

When I arrived, the garbage (to throw) by utility service.

• was thrown
• was throwing
• was being thrown
• has been thrown

Four people (to report) to have been injured in the accident.

• reported
• are reported
• had reported
• have reported

It ( to know) that the director is against this plan.

• has been known
• is known
• was known
• had been known