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!

build built
burn burnt
burst burst
bought bought
catch caught
choose chose
clung clung
come come
cost cost
crept crept