2. 外语
  3. Today, California’s public schools are a disaster.【C1】______by dysfunction and disrepair, they rank at the bottom of the country

Today, California’s public schools are a disaster.【C1】______by dysfunction and disrepair, they rank at the bottom of the country

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问题     Today, California’s public schools are a disaster.【C1】______by dysfunction and disrepair, they rank at the bottom of the country, just as the U.S. now sits at the bottom of the industrialized world by most【C2】______of educational achievement. The World Economic Forum【C3】______the U.S.’s educational system 26th in the world,【C4】______behind those countries like Germany, Finland,【C5】______Demark, Canada and Singapore. In science and math, the U.S. 【C6】______even worse.
    We’ve been talking about America’s education decline for three【C7】______now, so much【C8】______we are numbered by the discussion. But the【C9】______of that crisis are only just becoming fully【C10】______As American education【C11】______, the median wages of the American worker have【C12】______, and social mobility—the beating heart of American dream —has slowed to a standstill. Education is and always has been the fastest way【C13】______the socioeconomic ladder. And the【C14】______from a good education remains evident even in this weak recovery. If you【C15】______high school, you will have a depressed standard of living for the rest of your life.
    The need for better education for most Americans has【C16】______been more urgent. While they have been sleeping, the rest of the world【C17】______its skills. Countries in Europe and Asia have worked hard to increase their college-graduation【C18】_________, while the U.S.’s has flatlined. Other countries have focused on math and science,【C19】______in America degrees have【C20】______in "fields" like sports exercise and leisure studies.
【C11】
选项 A、has been collapsed
B、was collapsing
C、has collapsed
D、was collapsed
答案C
解析 语法辨析题。根据主句的时态可知此处亦用现在完成时，且“美国教育”与“失败”间为主动关系，故选has collapsed。
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