问题描述：
be concerned about sb
Although he is far from his country,he is much __________his partnts
A concerning about B concerned about
C concerning with D concerned with
选哪个 为什么啊
Although he is far from his country,he is much __________his partnts
A concerning about B concerned about
C concerning with D concerned with
选哪个 为什么啊
问题解答：
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