To fetch water before breakfast seemed to me a rule .
A. to never break
B. never to be broken
C. never to have broken
D. never to be breaking
网友回答
A. to never break
(答案→)B. never to be broken
C. never to have broken
D. never to be breaking
解析：动词不定式的否定式是在“to”前加“not”或“never”。“规则被打破”要用被动式。