如题所述
what a great food festival
转换成how引导的感叹句
How great the food festival is!
详解:感叹句式
what + a/an + 形容词 + 名词 + (主语 + 谓语)!
how + 形容词 + 主语 + 谓语!
再如:What a beautiful girl (she is)!
= How beautiful the girl is!
欢迎追问,放心采纳,(*^__^*) 嘻嘻……