問題詳情

25. Before you study abroad, you had better acquire some knowledge ______ for survival.
(A) being needed　
(B) that are necessary　
(C) needing　
(D) needed

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)