Although he the danger to his own health, he found it difficult to quit smoking.
A. was very aware of
B. well awared of
C. was well aware of
D. very awared of
网友回答
A. was very aware of
B. well awared of
(答案→)C. was well aware of
D. very awared of
解析：考查词组：be aware of意识到，aware这个形容词用well修饰，句意：虽然他意识到自己健康的危险，但他发现很难戒烟。选C。