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HUBLOT Posted 14 years ago
Grammar

In its first day

http://in.reuters.com/article/2012/06/08/entertainment-us-japan-music-akb-idINBRE85702L20120608
The song, which retailed at 1,600 yen ($20), sold more than a million copies in its first day.

Is it wrong to say "on its first day" instead of in its first day?
  

Top answer

Either preposition will work here.

  • Either preposition will work here.
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1 Answers
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Either preposition will work here.

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