【正确答案】 A

【答案解析】[解析] 感叹句的基本构成有两种形式：
① What a/an + adj．+n．+it +is!
What a fine day it is today! = What nice weather it is today!今天天气多好呀!
② How + adj/ adv．+人称代词+be动词!
How delicious they are!多么好吃啊!