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

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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 having been

答案B

解析 本题考查虚拟语气的倒装。分析句子可知,本题是省略了if的虚拟语气句,可将助动词提到句首引起倒装。与将来事实相反,从句的谓语动词使用“should+动词原形”。故答案为[B]项。本句可改写为:If there should be a sudden loud noise,these animals could be frightened。[A]项为分词短语,常作原因状语,故排除;两个分句间没有连词,故排除[C]项和[D]项。
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