【題組】40. (A)has knocked (B)had knocked (C)knocked (D)is knocking

問題詳情

【題組】40.
(A)has knocked
(B)had knocked
(C)knocked
(D)is knocking

參考答案

答案：B
難度：簡單0.741573
統計：A(6),B(66),C(14),D(0),E(0)

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