I like getting up very early in summer. The morning air is so good .
A. to be breathed
B. to breathe
C. breathing
D. being breathed
网友回答
A. to be breathed
(答案→)B. to breathe
C. breathing
D. being breathed
解析：breathe和air之间虽然是动宾关系，但good后省略了for me,其逻辑主语是I，故用动词不定式的主动形式。