Draw
1. A pair of non-adjacent supplementary angles.
It's urgent...having exam tomorrow

Answer :

We know : Two angles which do not have common ray coming out of the vertex going between two other rays are called as a non adjacent angles. If the sum of two non adjacent angles   is 180$°$ then those angles are called as non adjacent supplementary angles .
We draw non adjacent supplementary angles , As :



Here :

$\angle$ ABC  +  $\angle$ PQR  = 180$°$

So,
$\angle$ ABC  and  $\angle$ PQR are non adjacent supplementary angles .