When comes to saving energy, big changes start with small steps, like turning off the lig

发布时间：2020-08-16 07:23:18

When      es to saving energy, big changes start with small steps, like turning off the lights.
A. that
B. this
C. it
D. one

网友回答

A. that
B. this
(答案→)C. it
D. one
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