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题库 / OG2017V-SC-203
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.
the largest share for any country to contribute
the largest share that any country has contributed
which makes it the largest share for any country to contribute
having the largest share to be contributed by any country
having the largest share to have been contributed by any country
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①有的时候同位语可以很简洁明了的表达含义
②since一定得加完成时态（要从全局出发把握时态），现在完成时
③DE中have的修饰是to do sth很不合理；to do通常表示一定的purpose
I lifted the weight to free my leg.
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