----is running a.how fast boy b.what fast the boy c.how fast a boy d.how fast the boy

----is running a.how fast boy b.what fast the boy c.how fast a boy d.how fast the boy
----is running a.how fast boy b.what fast the boy c.how fast a boy d.how fast the boy

----is running a.how fast boy b.what fast the boy c.how fast a boy d.how fast the boy
选D,用how修饰副词,How fast the boy is running! 这个男孩跑得多快呀!



希望能帮到你,祝更上一层楼O(∩_∩)O
有不明白的请继续追问(*^__^*)

d

选d 这是个感叹句，感叹词how+形容词/副词+主谓！而感叹词what是加名词/名词短语再+主谓！