Phonics & says plane, push & banana (no more nana)

Today auntie went to http://www.starfall.com/ to see how kids learning phonics. Martin heard the sound and would repeat. No matter long A, short A, B, C (k), E phonics and apple, big, pig, frog, fog, dog & zac...etc. he'd pronounce exactly same as computer sound. I love to see he pronounce 'C' sound. It seems he got phlegm 痰 in his throat, very funny. In the past Martin could say nana only as banana, but this afternoon he suddenly said banana in kitchen. Now he's enjoy watching fireworks. It's the first time for him seeing July 4th fireworks. His reaction is to keep saying 'wow'.