i know!
9 A9 H) ^2 e4 O3 ~3 {公仔箱論壇when they can have 15 mins discussion.
/ L# D& S) @! Z" h" h' [ M" O5.39.217.77:8898make 1 of them to do a specific job whcih is counting公仔箱論壇: V5 \5 j1 I X3 x
only him can turn on off off the light.
6 O2 J! F/ }2 i, _. M( n% SBasically, if you are the first time to get in the room, turn on the light, * S k4 a7 u0 w- ~5 P3 m
then wait for "the special man" to turn the light off....
2 a0 Z& v" b% e! Ktvb now,tvbnow,bttvbwhen "the special man" count in up to 30 (included himself)
; j, R7 f6 C P" ~公仔箱論壇then it is done! |