問題詳情

(  )24.It is difficult for Vivian ________ her science homework by herself(她自己).
(A) to finish 
(B) finished 
(C) finishing 
(D) finish

參考答案

答案:A
難度:適中0.690909
統計:A(38),B(2),C(5),D(3),E(0)

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