問題詳情

6. Students, your final exam is approaching. It’s time ______ on your studies.
(A) focusing
(B) to have focused
(C) to focus
(D) to be focusing

參考答案

答案:C[無官方正解]
難度:簡單0.714286
統計:A(0),B(0),C(5),D(1),E(0)

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