正确答案:DF
解析:
The clue here is "never before...", which best points at (D) and (F).
(C) and (A) could work, independently, but they do not create synonymous sentences.
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正确答案:DF
解析:
The clue here is "never before...", which best points at (D) and (F).
(C) and (A) could work, independently, but they do not create synonymous sentences.