a. They (not have) a radio.
b. They (listen) to birds.
c. They (not listen) to the radio.
d. They (sit) on the ground.
e. They (sleep) in a cave.
f. They (not sleep) in bed.
g. They (not live) in houses.
h. They (live) in caves.
i. They (not watch) TV.
j. They (watch) pictures on walls of their cave.
k. They (not buy) clothes.
l. They (drink) fresh water.
m. They (not drink) cola.
n. They (eat) with fingers.
o. They (not eat) with spoons.