問題詳情

31. _________, water resources have been severely wasted or polluted.
(A)They are scarce
(B)Scarce they are
(C) Scarce as they are
(D)Ascarce they are

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)