問題詳情

36. In Antarctica, a massive wall that for years was an obstacle to whale watchers receded in 2010 to reveal a shallow channelfull of feeding humpbacks.
(A) that
(B) was
(C) receded
(D) to reveal
(E)feeding humpbacks.

參考答案

答案:B
難度:困難0.3
統計:A(0),B(3),C(1),D(4),E(0)

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