作者：英吉
Like any star of similar mass would do, once the Sun has exhausted the hydrogen in its core, it expands into a red giant, eventually ejecting its outer envelope of gases to become a white dwarf.
(A) Like any star of similar mass would do, once the Sun has exhausted the hydrogen in its core, it expands into a red giant, eventually ejecting
(B) Like any star of similar mass, once the hydrogen in the Sun's core is exhausted, then it expands into a red giant and eventually ejects
(C) As in the case of any star of similar mass, once the hydrogen in the Sun's core is exhausted, it will expand into a red giant, and eventually ejecting
(D) As any star of similar mass would, once the hydrogen in the Sun's core is exhausted it will expand into a red giant and will eventually eject
(E) As would be the case with any star of similar mass, once the Sun exhausts the hydrogen in its core, it will expand into a red giant and eventually eject
原文意思：象其他质量相同的星一样，一旦太阳消耗完了它的氢气，太阳就会扩张成红矮星，最终喷射出一些气体变成白矮星。
题目分析：A干掉，原因是like any star在逗号后面没有马上说谁不象那个any star（记住，说了不行必须是马上说，那个once不行）。B逗号后面用hydrogen就更不靠谱了，干掉。C中的it will expand中的it按照道理应该指的是太阳，但是前面没有说过太阳，干掉。D as any star，逗号后面说氢气，不行，干掉（为什么C我不这么讲，因为C前面加了in the case of）E为什么once就没有事情，因为不失前面的any star和后半句进行对比，是the case和后面的某个case进行对比，once就已经开始说case了，没有问题，并且it指的太阳前面说过，没有问题，选E。
