moon7296 If we put of instead of 'for', the meaning of the sentence is a little different, isn't it ? Emails have become the norm for efficient communication. Emails have become the norm of efficient communication.
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moon7296If we put of instead of 'for', the meaning of the sentence is a little different, isn't it ?To my ear, it is.
Emails have become the norm for efficient communication.
Emails have become the norm of efficient communication.