单选题
There is a real possibility that these animals could be frightened, ______ a sudden loud noise.
A、
being there
B、
there having been
C、
there was
D、
should there be
【正确答案】
D
【答案解析】
本题中that引导的从句部分要求使用虚拟语气,其中should there be等同于 if there should be。考查的是对“省略if并采用倒装结构的虚拟条件句”的掌握,故应选D。
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