問題詳情

144. This Information _______________________ to a great many people.
(A) was proved to be useful
(B) has proved it useful
(C) has been proved to be useful
(D) has proved useful

參考答案

答案:C
難度:適中0.571429
統計:A(13),B(3),C(28),D(2),E(0)

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