Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
a. They (not have) a fridge.
b. They (have) fresh food.
c. They (not listen) to a stereo.
d. They (listen) to each other.
e. The (not cook) on a cooker.
f. They (cook) on a fire.
g. They (sit) on stones and rocks.
h. They (not sit) at tables.
i. They (use) spears for hunting.
j. They (not buy) food at a local shop.
k. They (not wear) trousers.
l. They (wear) animal skins.