Question

The little boy came riding full speed down the motorway on his bicycle. ______ it was!

   A. What a dangerous scene      B. What dangerous a scene

   C. How a dangerous scene       D. How dangerous the scene

Answer 1

A

解析:

感叹句句型。英语中的感叹句分what和how开头两种：

1）What +a/an+形容词+单数可数名词+主语+谓语；What+形容词+不可数名词（复数名词）+主语+谓语 

2）How+形容词（副词）+主语+谓语；How+形容词+a/an+单数可数名词+主语+谓语

根据以上结构，四个选项只有A项正确。