请教一道语法题，关于that

Schliemann determined at the age of seven to find the site  of ancient Troy and devoted his subsequent career to do it。

a).......

b)has devoted his subsequent career to do that

c)devoted his subsequent career to such an end

d)has devoted his subsequent career for that

e)devoted his susequent career to that end

答案是E， 我想问E中that指带什么？

先确认一下题和答案抄的对不对。有两种可能：

一是and前后连接与to find平行的结构，省略to(determined to do and do ),应该是devote his subsequent career to (do) it. 所以先确定原来c\d选项是否有一个是原形动词。

另一种可能and前后连接两个并列句子，如果是这样就应该是完成态，也许b项更合适些。

that end联合起来指代前面的 to do，就是用一个概括性的词语表达前面不定式的内容；这里的that不是单独指代；

and引导并列，与前面的determined处于相同的位置；

B句中的do that有问题，that一般在GMAT中很少单独出现，一般都是与其他短语联合出现；

选项抄的是对的，我确认过。

B中and前后的时态也不对称啊。that除了指带一个名词以外还可以指代一个句子吗？

（that一般在GMAT中很少单独出现，一般都是与其他短语联合出现）

如果GMAT有这个规律，就是三楼说法合理。