这道题为什么要用同位语而不是用伴随状语?having the largest share to have been contributed by any country也可以修饰accounted for呀?还有A和B的区别除了时态(since 1990是完成时的标志),还有to contribute意思目的是去贡献什么,但是这里只是说任意国家贡献最大的一部分?
B.actually, the way the parallelism is written here, "she" doesn't mean selma.
if i say "he wrote the first half, and jim wrote the second half", then the one thing of which you can be absolutely sure is that jim didn't write the first half.
rangeland n. 牧场