You are so smart!

YOYO跟他爹在后座上玩字母游戏。
YOYO ask " what letter does green start?" Daddy said: "D"
YOYO" how about tree?"
爸爸"Letter T"
最后，YOYO又问 "how about eat?" 爸爸仍然回答正确 "letter E"
YOYO说了一句 "you are so smart"
爸爸乐得屁颠儿屁颠儿, 赶紧说 "thank you, YOYO"
儿子很酷的说 " you are welcome."