单选题A rogue loose called a hacker could take control of the entire system by implanting his own instructions in the software and then he could program the computer to erase any sign ______ .Aof his being ever thereBhe ever has been thereCof his having ever been thereDof him having ever been there
单选题
A rogue loose called a hacker could take control of the entire system by implanting his own instructions in the software and then he could program the computer to erase any sign ______ .
A
of his being ever there
B
he ever has been there
C
of his having ever been there
D
of him having ever been there
参考解析
解析：
本题考察动名词的所有格形式；另外，根据句意可知，sign的动作已经发生，应用动名词的完成时。所以选项C正确。
本题考察动名词的所有格形式；另外，根据句意可知，sign的动作已经发生，应用动名词的完成时。所以选项C正确。
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