-Henry doesn’t seem to be what he was. -No. so many terrible things in the war h
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—Henry doesn’t seem to be what he was.
—No. ________ so many terrible things in the war has made him more thoughtful.
A. Seen B. His seeing
C. Having seen D. To have seen
试题答案
B
本题考查动名词短语作主语。排除A、D两项。 由第一句的主语Henry和see之间的主谓关系可推知B项正确。本题容易错选C，但是having done一般作状语，不用作主语。