Question

【题目】The experiment, though they had tried their best, ________to be a failure.

A. turned round B. turned out

C. turned up D. turned on

Answer 1

【答案】B

【解析】考查短语辨析。句意：这个实验，尽管他们努力尝试，结果还是失败了。A项表示“转身”；B项表示“结果是，证明是”；C项表示“出现，发生”；D项表示“打开”，只有B符合句意。故选B。