問題詳情

12. Whenever Joe went camping in the mountains, he _____ any water that he got from streamsbefore drinking it.
(A) purifies
(B) may be purifying
(C) would purify
(D) have purified

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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