单项选择题
A. UFO’s are only recent observations B. UFO sightings are not new C. UFO’s are just comets, and auroras etc. D. UFO’s are inventions by people who lack scientific knowledge
A. to steal something B. to have a drink C. to see Tom D. to read Tom’s story
A. The basketball team was often defeated so their feelings were miserable. B. When they lost a match, they always complained about each other. C. They were not in good relationship with each other. D. They had a good sportsmanship even when they lost.