青少版新概念(入门级A)u9

LydiaB.Listenandsay.bonepizzatomatosausagesaladhamburgerit'sitiswhat'swhatisthat'sthatisIt’sa/an….What’sthis?What’sthat?It’sa/an….Lesson2Let’splay!让我们玩吧！Yourturn!轮到你了！Whatisit?它是什么？It’sanegg.它是一只蛋。