There is a real possibility that these animals could be frightened, ______ a sud

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问题 There is a real possibility that these animals could be frightened, ______ a sudden loud noise.

选项 A、being there
B、should there be
C、there was
D、there have been

答案 B

解析考查省略if的虚拟条件句的倒装。虚拟条件句省略if后需要倒装，要把助动词提到句首，因此选项B正确，还原后为“if there should be... ”。选项A是现在分词短语，通常作原因状语，与本题的句意不符。选项C和D中没有连词连接两个句子。

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