Both "a" and "the" are possible. More context might help to determine which is preferable. Are you talking about a specific individual or people in general?
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RazerThanks for answering my query. I'm taking about people in general. I guess article a should come there. Just want to confirm itYes, "a" seems better.
RazerAnd yes word hope is short of I hope. Will put "I" before the word hope.Yes, the abbreviated style without "I" is most often used for short, chatty, informal sente