Bats are surprisingly long-lived creatures, some ______ a life span of around 20 years.
A、
having
B、
had
C、
have
D、
to have
【正确答案】
A
【答案解析】
分析句子结构可知，该句为独立主格结构。some为逻辑主语并与谓语动词构成主动关系，故本题选A。
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