TherewillbeaspeechonourschoolplaygroundthisSaturdayafte...
问题详情：TherewillbeaspeechonourschoolplaygroundthisSaturdayafternoon,whichthemeis“Tocivilizeschoolyardismyresponsibility”．Alltheteachersandstudentsrequiredtoattend．Intheactivity,thefirsttwowinnerineac...