The community centre will be open ______ (by / with) a local politician.
The community centre will be open by a local politician.
The window wasn't broken ____ (by / with) a tool; the burglar used his hand.
The window wasn't broken with a tool; the burglar used his hand.
Global warming is a major concern for the plante. (believe) Global warming ____ for the planet.
Global warming is believed to be a major concern for the planet.