De or het smoorkuil?

The correct Dutch article is:

de smoorkuil

How to use smoorkuil

the smoorkuilde smoorkuil
this smoorkuildeze smoorkuil
that smoorkuildie smoorkuil
our smoorkuilonze smoorkuil
your smoorkuiljouw smoorkuil
every smoorkuilelke smoorkuil
which smoorkuil?welke smoorkuil?
a big smoorkuil / the big smoorkuileen grote smoorkuil, de grote smoorkuil