It was the fifth time that he ______ to such a meeting.
| A．have been invited | B．was invited | C．had invited | D．had been invited |
After he became conscious, he remembered _________ and _________ on the head with a rod.
| A．to attack; hit | B．to be attacked; to be hit |
| C．attacking; be hit | D．having been attacked; hit |
Human facial expressions differ from those of animals in the degree _________ they can be controlled on purpose.
| A．with which | B．of which | C．to which | D．for which |
David and Susan didn’t give in to each other, so they _________ the whole time they were together.
| A．have quarrelled | B．had quarrelled |
| C．were quarrelling | D．had been quarrelling |
At a rough estimate, Nigeria is _________ Great Britain.
| A．three times the size as | B．the size three times of |
| C．three times as the size of | D．three times the size of |
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.
| A．little | B．less | C．more | D．fewer |