4、_yourmeal.3.Onehour_____.4.Whata____!5.Theballoonsareflying______.六.补全对话(5分)根据情境从下面的选项中选择适当的句子完成对话,并将相应句子的序号写在题目中横线上。A.CanIhelpyou? B.Howmuchisit? C.Ahamburgersforme,too.D.Hereyouare.E.Enjoyyourmeal! Cashier:___1_____ ? Simon: Iwant a hamburger. Da