READ THE INSTRUCTIONS CAREFULLY!
On the left you will see a series of nouns with the article in front which means 'a.' On the right you will see the noun again with a gap in front of it. Fill in all the gaps with the correct gender of article which means 'the.' then press "Check" to check your answers. You can click on the "[?]" button to get a clue. Note that you will lose points if you ask for clues!
NOTE. The pictures are only there to help you with your comprehension of the nouns.