All work and no play makes Jack a dull boy, which suggests that work and play do not ______ but promote each other.
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.
The study of nearly 10,000 people showed that those who drank more than two cups of coffee or tea per day developed the disease at half the rate of those who drank _________ than one cup each day.