单选题We realized that he was under great _____, so we took no notice of his bad temper.
单选题It rained hard yesterday, _____ prevented me from going to the park.
单选题The notion that a parasite can alter the behavior of a host organism is not mere fiction; indeed, the phenomenon is not even _____.
单选题His arm was _____ from the shark’s mouth and reattached but the boy, who nearly died，remained in a dedicate condition.
单选题When required by their teacher to take notes in classes, some students only do so _____.
单选题He found it was quite difficult to understand the girls, for their ideas are quite _____ to his own.
单选题Once our hens started laying eggs, we had such a _____of eggs that we were giving many away to our neighbors.
单选题There is _____ man downstairs waiting for you.
单选题It is reported that _____ adopted children want to know who their natural parents are.
单选题When you are traveling _____, you often need to stay in a hotel.
单选题As the world has moved into a scientific age, the origin of herbal medicine in many countries remains _____ in mystery and often sounds fantastic to those trained in modern science.
单选题The ink had faded with time and so parts of the letter were unreadable.
单选题Grover Cleveland was the first president ______ in the White House.
单选题The discussion was so prolonged and exhausting that ______ the speakers stopped for refreshments.
单选题Then in June 1967 the country ______ diplomatic relations with Israel after the outbreak of the Six Day War.
单选题If tap water were as dangerous as some people think, _____ would be getting sick.
单选题The explanation given by the manager yesterday was not at all _____ to us.
单选题The horse relaxed, and the rider slackened the rein.The underlined part means _____.
单选题He wasn’t appointed chairman of the committee, _____ not very popular with all its members.
单选题The boat suddenly _____ to the left and his missed his footing.