問題詳情
【題組】61. It was difficult for the couple to live a green life for the whole year because_________.
(A)they were expected to follow the green fad
(B)they didn't know how to educate other people
(C) they were unwilling to reduce their energy
(D) they needed to perform unusual green tasks
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)