33. So difficult it to work out the problem that I decided to ask Tom for advice.(A) I did find (B)

問題詳情

33. So difficult it to work out the problem that I decided to ask Tom for advice.
(A) I did find
(B) did I find
(C) I have found
(D) have I found

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)