23. Environmental experts are those who devote to nature and environment.A. them…protectin

发布时间：2020-08-16 13:41:36


23. Environmental experts are those who devote     to     nature and environment.
A. them…protecting
B. their…protect
C. themselves…to protect
D. themselves…protecting

网友回答

A. them…protecting
B. their…protect
C. themselves…to protect
(答案→)D. themselves…protecting
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