A March 2000 Census Bureau survey showed that Mexico accounted for more than a quarter of all foreign-born residents of the United States, the largest share for any country to contribute since 1890, when about 30 percent of the country's foreign-born population was from Germany. (A) the largest share for any country to contribute (B) the largest share that any country has contributed (C) which makes it the largest share for any country to contribute (D) having the largest share to be contributed by any country (E) having the largest share to have been contributed by any country 这道题选b,语感上可以选对,但是语法上不太明白。逗号后的the largest share that any country has contributed 修饰 more than a quarter of all foreign-born residents of the united states? 什么情况下逗号后修饰的是bureau survey?什么情况下逗号后修饰的是前面的一整句话呢?
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