captain Underpants punctuation

A class of children are sitting on the mat."This is me in kindergarten."Says George."And this is me.'Exclaims harold.'geogre and I aren't friend yet but we're about to be'she coutinues speaking as she writes on the board."The seventh planet from the sun is called...... uranuy.George and harold burst into lauhter.The teacher quickly turny to glare at the boys.cv turning back to the board she says."Hrmm Hrmmm."George looks over to harold.'ur......Anus."laughs harold quietly."Iknow.".. continues George laughing at harold.The teacher turns and coughs."scientists"............ teacher begins writing on the board and says."known as a gas giant".... Hahahahahahahaha."laugh the boys hysterically.