The police have not yet determined what caused the explosion at the factory.
to
The police .................... cause of the explosion at the factory was.
Although the critics praised the film, it was not a commercial success.
DESPITE
.................... critics, the film was not a commercial success.
I did not realise that the consequences of my decision would be so serious.
LITTLE
.................... would have such serious consequences.
The committee rejected the proposal because there was not enough evidence to support it.
HAD
.................... the proposal, the committee would not have rejected it.
The minister is believed to have resigned because of pressure from senior party members.
that
.................... as a result of pressure from senior party members.
No matter how hard we tried to persuade him, Jonathan refused to change his mind.
MIGHT
...................., Jonathan refused to change his mind.