Examples:
Accept (to receive): "I accept
your apology."
Except (excluded from): "I like everyone except
her."
Capital (economic resources OR the
city where lawmakers meet)
Capitol (the building where lawmakers meet)
Principal (head of a school): "The
principal is your pal."
Principle (a moral or fundamental truth): "That
is against my principles."
There (meaning "in that place"):
"The book is over there."
Their (possessive pronoun "belonging to them"):
"Their book"
They're (contraction for "they are"): "They're
coming soon."
Its (possessive pronoun): "The
dog lost its bone."
It's (contraction for "it is"): "It's
a shame you can't come."