(A) that such a study has not been practical
(B) that studying it that way has not been impractical
(C) for such studies as this to have been impractical
(D) as to not make such a study practical
(E) as to be impractical of study
答案A, 想請問一下E為什麼錯呢? so...as to...不是比 so...that...的子句來得簡潔呢? 而且主詞前後都一樣是 tornado
是不是 impractical of study出了問題呢? 還請各位幫忙...
