Interesting BI period

On Wed during Eng period Our Beloved Madam Ellen teach us to sing...but the song we sing childish one : Baa baa black sheep, Twinkle twinkle little star,ABC...songs we sang when kindergarten..N when we sang ABC two ppl come knock our door their face is so funny to view---they just got nga diao..i rmb tat n vio laugh at them behind the class..