【題組】30. (A) has studied (B) studying (C) had studied (D) to study

問題詳情

【題組】30.
(A) has studied
(B) studying
(C) had studied
(D) to study

參考答案

答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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