选择：——interesting it is to go sailing in Qingdao in summer!A How B How an CWhat DWhat an
问题描述：
选择：——interesting it is to go sailing in Qingdao in summer!A How B How an CWhat DWhat an
答
选A
WHAT和HOW的感叹句：
what：What+(a/an)+名词+主语+谓语!
how:How+形容词/副词+主语+谓语!
上面的句子中interesting是形容词,it是主语,is是谓语,没有给名词空出来的地方,因此选A,how