单选题
I had never seen so many people with so many disabilities. I returned home, silently ______. thinking how fortunate we really were.
A、
retrospective
B、
introspective
C、
perspective
D、
prospective
【正确答案】
B
【答案解析】
introspective自省的，反省的。retrospective回顾的，追溯的。perspective观点，看法。prospective预期的。
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