Question

此题选C是否正确，若不对，请说明为什么错，及正确的理由

---Henry doesn’t seem like the same person.
--- _____so much in the war has made him more thoughtful.
A. For him to see B. His seeing C. Having seen D. To have seen
有没有会的

Answer 1

=我觉得选C。
句子缺主语，所以__ so much in the war 这一块是句子的主语，动名词可以做主语。至于为什么不选B，，，，不记得了，凭语感选C

Answer 2

句子缺主语，用动名词，在后三个选项中选，回答中用完成时表示实在过去发生的战争让他产生了变化，强调已经发生的战争用having done，所以选c