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A) It's possible that the person has a virus of some kind.

B) There's a possibility that the person has a virus of some kind.

My questions;

1) Do these two sentences A and B mean the same?

2) If so, do you think these two phrases, (It's possible that) and (There's a possibility that ), are always interchangeable?

FYI, I'll post some other phrases;

It's possible /There's a possibility that I will be chosen for the job.

It's possible /There's a possibility that I might be wrong.

It's possible /There's a possibility that she didn't know.

Thanks,
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Yes, they always mean the same thing. If there is any difference, it is too subtle to define.
Comments  
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Thanks, Kris.
Let me ask you one more question;
If you're writing on a corporate report or something, which phrase sounds more formal? No difference at all? Which do you think you'd choose??
Thanks,
Maki
I would use "It's possible ..." but that's only because it's shorter. Otherwise, toss a coin :-)
Emotion: smileThanks Kris!
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