问题
单项选择题
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
答案
参考答案：B
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。