it's or its

she lectures you
on the phone
about using an apostrophe
after
t and before the s.
being an English teacher
she is always on the job,
patrolling
the grammar streets,
the punctuation
beat of your mind.
you can't assign
passiveness to an object
she says,
trembling with concern.
you should know that by now.
sit down and write
twenty times I will
not use it's, when it's
supposed to be its.
use it in a sentence.
show your work and double space.
I want this done by
the end of class.
and would it kill you
to use a capital letter
once in a while, mr.
e.e. Cummings want to be.