A worm is a kind of ________.
bag
bug
big
pug
This idea ______ great!
sounds
sound
seunds
saund
You can ______ away what you write with an eraser.
rap
rab
rubs
rub
Birds can fly with their ________.
wings
wing
won
win
The kid is _______ behind a tree. No one can see her.
hid
hide
high
hiding