A proposal came up at the meeting the protection of giant pandas in Sichuan.A. was concern

发布时间：2020-08-16 14:44:32

A proposal came up at the meeting     the protection of giant pandas in Sichuan.
A. was concerned with
B. concerned about
C. concerning
D. to concern

网友回答

A. was concerned with
B. concerned about
(答案→)C. concerning
D. to concern
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