Dear Dad,

$chool i$ really great,I am making lot$ of friend$ and $tudying very hard.
With all my $tuff,I $imply can't think of anything I need $o if you would like,you could ju$t $end me a card a$ I would love to hear from you.

Love,Your $on.

The Reply.

Dear Son,

I kNOw that astroNOmy,ecoNOmics and oceaNOgraphy are eNOugh to keep an hoNOur student busy.
Do NOt forget that the pursuit of kNOwledge is a NOble task and you can never study eNOugh.

Love,Dad.