TASK DEFINITION: In this task, you are given a sentence. You must judge whether a single noun or verb has been replaced with another word with the same part of speech. The inversion would result in the sentence sounding unnatural, So unnatural sentences will be considered changed. Label the instances as "Original" or "Changed" based on your judgment.
PROBLEM: Though my hands were trembling , I lifted my gaze and met his without flinching .

SOLUTION: Original

PROBLEM: I am not preaching , and Heaven knows I do not pretend to be better than anyone else .

SOLUTION: Original

PROBLEM: Regular as clockwork , seven days a week , small business , we never rest .

SOLUTION:
Original