题目内容
To fetch water before breakfast seemed to be a rule ________.
- A.to never break
- B.never to be broken
- C.never to have broken
- D.never to be breaking
B
解析：never to be broken是not to be broken的强化形式，是不定式的被动式作定语。
解析：never to be broken是not to be broken的强化形式，是不定式的被动式作定语。
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