問題詳情

22. _____, the region would become a wasteland, incapable of supporting human settlements.
(A) If such measures were not taken
(B) If such measures have not taken
(C) If such measures take
(D) If such people were taking

參考答案

答案:A
難度:適中0.677419
統計:A(21),B(6),C(1),D(0),E(0)

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