Question

What      great fun it is to have a swim in a hot day in summer.

A．a

B．the

C．/

D．of

Answer 1

C

考查冠词，fun是不可数名词，前面不加冠词，句型是：it‘s fun to do sth，what修饰fun，句意是;大热天游个泳是多么快乐的事啊。选C。