問題詳情

3. If you add enough insulation to your house, you may be able to _______.
(A)improve your work environment
(B)cut your utility bills by half.
(C) get rid of air-conditioners
(D) enjoy much better health

參考答案

答案:C
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

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