She smiled . . . . . . . . my mistakes.
A. on
B. upon
C. over
D. at
Answer: Option D
Solution(By Examveda Team)
'At' indicates specificity of something. Here, a specific 'mistake' is the reason for the 'smile'.Related Questions on Preposition
A. on
B. upon
C. over
D. at
Answer: Option D
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