阿摩線上測驗
6. To create an eco-friendly environment, everyone should get into the habit of _____ electricity and other forms of energy.
(A) preserving
(B) reserving
(C) conserving
(D) deserving
答案：登入後查看
統計： A(4), B(1), C(2), D(1), E(0) #3298462
統計： A(4), B(1), C(2), D(1), E(0) #3298462
