Notice how important phonetics and pronunciation are in English:
Homophones are words that sound the same but have a different spelling and meaning; eg: to, two, too.
Try now the following audio-crossword about the spelling of homophones.
Play the Pairs Word Game and learn when to use and spell these words correctly.
But never give up, keep trying. We all know that English pronunciation is not always easy, as you can see in the following video: