og语法52题 求问！

甜蜜小乌龟

52.   To Josephine Baker, Paris was her homelong, before it
was fashionable to be an expatriate, and she remained
in France during the Second World War as a performer
and an intelligence agent for the Resistance.

(A)     To Josephine Baker, Paris was herhome long
before it was fashionable to be an expatriate,

(B)    For Josephine Baker, long before it was
fashionable to be an expatriate, Paris was
her home,
(0 Josephine Baker made Paris herhome long
before to be an expatriate was fashionable,
(D)     Long before it was fashionable tobe an
expatriate, Josephine Baker made Paris
her home,
(E)     Long before it was fashionablebeing an
expatriate, Paris was home to Josephine Baker,


这道题在c和d之间选择d我出现了问题 不知c为什么错 我想问为什么long before to be an expatriate这样表达不正确？

sunny803

C项中，long before后面从句中是不定式做主语，而不定式做主语的句子OG和prep的正确句子里都没有出现过。不定式做主语一般会导致句子头重脚轻，所以用it做形式主语来改写句子，以达到平衡。