to play with the kids!A. What a fun it isB. What fun it isC. How fun it isD. How fun is i

问题补充：

to play with the kids!

A. What a fun it is

B. What fun it is

C. How fun it is

D. How fun is it

答案：

A. What a fun it is

(答案→)B. What fun it is

C. How fun it is

D. How fun is it

解析：fun为不可数名词，在感叹句中前不加冠词，也无复数形式。