问题补充:
that he was in great danger, Eric walked deeper into the forest.
A. Not realized
B. Not to realize
C. Not realizing
D. Not to have realized
答案:
A. Not realized
B. Not to realize
(答案→)C. Not realizing
D. Not to have realized
解析:考察非谓语动词用法。Realize与Eric构成主动关系,故使用现在分词表示主动,根据句意可知使用否定形式,故C正确。句意:没有意识到自己处于巨大的危险中,Eric继续向树林深处走去。