问题
选择题
Miss Li asked a question, but it was ________ that nobody could answer it. [ ]
A. very diffcult
B. too diffcult
C. diffcult enough
D. so diffcult
答案
答案：D
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Miss Li asked a question, but it was ________ that nobody could answer it. [ ]
A. very diffcult
B. too diffcult
C. diffcult enough
D. so diffcult
答案：D