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题库 / Prep2007E1-SC-114
A study on couples' retirement transitions found that women who took new jobs after retiring from their primary careers reported high marital satisfaction, more than when retiring completely.
more than when retiring
more than if they were to retire
more so than those who retired
which was more so than those retiring
which was more than if they had retired
还没有题目讲解（毕出老师会陆续发布对官方考题的解读，请保持关注）。
it/they/that/those只能指代名词，不能指代句子，so可以，如：
Wrong: No one do it, even though there are more apples in the trees can be picked this year.
it找不到指代对象，按句意是想指代采摘更多的苹果这件事。
改成：No one do so, even though there are more apples in the trees can be picked this year.
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