The killer insisted that she was defending herself when _______.
_________ environmental damage is done, it takes many years for the ecosystem to recover.
After he became conscious, he remembered _________ and _________ on the head with a rod.
Human facial expressions differ from those of animals in the degree _________ they can be controlled on purpose.
David and Susan didn’t give in to each other, so they _________ the whole time they were together.
At a rough estimate, Nigeria is _________ Great Britain.