The teacher cautioned me . . . . . . . . my spelling? A. for B. against C. at D. on

for
against
at
on

The correct answer is: D. on

The teacher cautioned me on my spelling. This means that the teacher warned me about my spelling, or told me to be careful about my spelling.

The other options are not correct because they do not make sense in the context of the sentence.

  • A. for – The teacher did not caution me for my spelling. This would mean that the teacher was giving me a reward for my spelling.
  • B. against – The teacher did not caution me against my spelling. This would mean that the teacher was warning me about something that might happen if I did not improve my spelling.
  • C. at – The teacher did not caution me at my spelling. This would mean that the teacher was looking at my spelling.

I hope this explanation is helpful!