Yo <em>estoy hablando</em> con Miguelito.
Estar = not done yet, but will be done...
vs.
Estoy = in the current process of...
Hablo = Speak
vs.
Hablando = Speaking
In this sentence we use estoy and hablando because it is current.
Hope this helps!~
<em><u>Nunca</u></em> seems like it fits in the blank.
Nosotros nos interesan la literatura espanola.