問題詳情

17. __what to do, the little boy began to cry.
(A) Knowing not exactly
(B) Exactly knowing not
(C) Not knowing exactly
(D) Not known exactly
(E) To know exactly

參考答案

答案：C
難度：適中0.666667
統計：A(1),B(0),C(6),D(2),E(0)