Do you think I'll get married before I turn 30? - Who knows, you might never marry.
Since she hasn't studied at all I don't think she'll pass the test, but who knows? She might pull a Homer and actually pass; I doubt it though.
... and everyone knows what happens when oxygen meets iron. ...
... like, a few every night, like, you know, in California, I do, like, God Only Knows by ...