What's this?
run
What's this?
bus
What's this?
truck
What's this?
nut
What's this?
u, u, Uu
What's this?
cub
What's this?
cup
What's this?
sun
What's this?
duck
What's this?
rug
What's this?
tub
What's this?
but
What's this?
brush
What's this?
mud
What's this?
fun
What's this?
skunk
What's this?
bug
What's this?
hug
What's this?
drum