at or on?

[sebayanpendam]

hi,

I came across this sentence on an English exam paper,
'write a letter to your friend to tell him/her on what you did during your stay at Indah island.'

what i know is that preposition 'on' is always goes together with islands. Could 'at' be acceptable? If yes, why?

thanks a bunch.

 

[bhaisahab]

hi,

I came across this sentence on an English exam paper,
'write a letter to your friend to tell him/her on what you did during your stay at Indah island.'

what i know is that preposition 'on' is always goes together with islands. Could 'at' be acceptable? If yes, why?

thanks a bunch.

'write a letter to your friend to tell him/her on what you did during your stay at Indah island.'
It should be "on", also the "on" before "what you did" is incorrect, it should be "about". While sometimes "on" can be used to mean "about", in this case it cannot.

 

[sebayanpendam]

Hi again,

Thanks for your response. I thought 'at' was possible because the one who set the question was a group of senior English teachers. And thanks for enlightening me about 'on'. Could please explain about why 'on' cannot be interchangeably used as 'about'? All this while, i was misled that 'on' was a synonym of 'about'.

thanks