Bad news: noun and adjective endings 2

Matching exercise

Select the correct case for each of these nouns and adjectives.
pater
patrem
mater
matrem
vox
vocem
vir
virum
viros
amicus
amicos
amicam
voces
urbs
urbem
urbes
princeps
principem
principes
servus
servum
servos
servi
arbor
arborem