He traveled from place to place , social problems of all kinds .A. making out B. seeing to

发布时间：2020-08-16 12:28:55


He traveled from place to place ,        social problems of all kinds .
A. making out
B. seeing to
C. going over
D. looking into

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A. making out
B. seeing to
C. going over
(答案→)D. looking into
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