"do one's duty on smb" or "do one's duty to smb"?

Linh Bui Hoang · Mon Jan 28, 2008 10:14 am *"do one's duty on smb" or "do one's duty to smb"?*

The task here is to fill the blank with an appropriate preposition:
I have always done my duty _____ my students
I think it should be "to" but my teacher has corrected it into "on".
Would you tell me the answer?

Alan · Mon Jan 28, 2008 10:44 am *"do one's duty on smb" or "do one's duty to smb"?*

Hi,

I would suggest 'by' in the sense of 'as far as my students are concerned'.

Alan
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Linh Bui Hoang · Mon Jan 28, 2008 10:52 am *"do one's duty on smb" or "do one's duty to smb"?*

ooh, you mean that it should be "I have always done my duty by my students". What should I choose now Sad

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Mister Micawber · Mon Jan 28, 2008 11:21 am *"do one's duty on smb" or "do one's duty to smb"?*

.
Well, don't choose on-- it has a scatological meaning!
.
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Yankee · Mon Jan 28, 2008 15:12 pm *"do one's duty on smb" or "do one's duty to smb"?*

Linh Bui Hoang · Mon Jan 28, 2008 16:49 pm *"do one's duty on smb" or "do one's duty to smb"?*

Ok, I got it. "by" is correct. Thank you all very much indeed!!!! Very Happy

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