Fill in the blanks with the correct usage:
did they put (their/there/they're) clothes away.
(your, you're) going to need a pencil.
(your, you're) textbook is brand new.
(its, it's) a beautiful day!
where is (its, it's) bed?
(its, it's) almost lunch time!
you are taller (than, then) i am.
the new law will go into (affect, effect) tomorrow.
this will (affect, effect) my decision.
will this (affect, effect) the economy?
the low grade will not (affect, effect) my average.
i went (threw, through) the tunnel.
i plan to drive (threw, through) there tomorrow.
he (threw, through) water on me!
review the (principle, principal) of the loan.
he was a man of (principle, principal).