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!
   in      of      on      than      the   
Fill in the missing words:

1. An apple is healthier a chocolate.
2. Which is the most dangerous snake Africa?
3. Mary is the most intelligent girl all.
4. Health is more important money.
5. According to studies, flying is safest means of transport.
6. I am better at football you.
7. Blue whale is the heaviest animal earth.
8. Dad is the tallest person our family.
9. This is most interesting book of all.
10. My watch is more expensive your watch.