In the same exercise I was given these two examples: a) It was a very happy day. It was the happiest day of my life. b) It was a very bad mistake. It was the worst mistake in my life. Are the prepositions of and in interchangeable here? Can I say It was the happiest day in my life and It was the worst mistake of my life ? I find prepositions really confusing and most of the times I second guess the way I have used them.
Top answer
I would use of in both sentences. Some may find in acceptable.
— RandomGuy
I would use of in both sentences.
Some may find in acceptable.
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There's a song by Pink Floyd... "The Happiest Days of Our Lives"
I've never heard in being used there... and yet when I come to think of it, it sounds somewhat better to me to use in in the second sentence about the worst mistake For example: