120.

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.

(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

prep 的解释如下：
(D) :用as连接句子表示比较也正确，但不应该用过去时态

prep 的解释如下：
(D) :用as连接句子表示比较也正确，但不应该用过去时态

would，应该用将来时will
(E)正确，as would be the case with…是比较结构的一种，表达比较对象的情况相同

选 E 无可厚非，因为D 错了其他许多地方，但是 既然要求 D 中的 would 改成will 才正确， 那么E 为什么用 would 就正确呢？ 请大家帮忙解答哈！