37.Although schistosomiasis is not often fatal, it is so debilitating that it has become an economic drain on many developing countries
A. it is so debilitating that it has become an economic
C. so debilitating is it as to become an economic
答案是A, 我想问的是选项C,书上的解释是the construction so x as to y is not a correct idiom，它的意思是说这样的表达方式都不对吗？不对吧
50. According to some analysts, the gains in the stock market reflect growing confidence that the economy will avoid the recession that many had feared earlier in the year and instead come in for a "soft landing", followed by a gradual increase in business activities
原句是对的，我想问的是为什么要用had feared,为什么要用过去完成时呢，用feared一样可以说得通啊
56. many of the earliest known images of Hindu deities in India date from the time of Kushan Empire, fashioned either from the spotted sandstone of Mathura or, Gandharan grey schist
A. Empire, fashioned either from the spotted sandstone of Mathura or
原句是错的，但是书上的解释是：placement of the modifier fashioned....suggests that the Empire (the closest noun), not the images of the deities, was fashioned.但是从语法上来说，前面有逗号的话，fashioned要么是描述主句的主语，要么是修饰前面的整个句子，从来没有听说可以修饰前面句子的最后面的名词啊？？
谢谢回复哦~~~~
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