单项选择题
Having reached the top of the hill, we were appalled to find the path（）precipitously
A．departed B．decreased C．descended D．derailed
单项选择题 Often considered in common thought as（）, language, culture, and personality are in fact inseparable
单项选择题 Whenever work is being done, energy（）from one form into another.
单项选择题 The pursuit was（）when it was clear that we had won the day
