________ it is to jump into the river to swim in summer!
A. What a fun                B. What fun              C. How fun             D. How funny

________ it is to jump into the river to swim in summer!
A. What a fun   B. What fun   C. How fun   D. How funny

What ________ it is to jump into the river in summer to have a swim!

1. A.
   fun
2. B.
   a fun
3. C.
   a funny thing
4. D.
   a fun thing