What fun it is ___(play) football with my friends in the sun

What fun it is ___(play) football with my friends in the sun What fun it is ___(ride)a horse on such a large area of flat land! ___ ___ it is to have a swim in hot summer.A.What a fun.B.How fun.C.What fun.D.What a fun.这一道题目我用排除法排除AD两项,BC中怎么选? what ___(funny) it is to play with children!横线处填fun为什么?fun即可做名词还可做形容词这里的fun是什么词性 What a ____(fun)story it is! what fun it is to=how____ 为什么是what fun it is to. what fun day it is?为什么用fun,不用funny 如题What fun it is中fun是什么 what fun it is! 这个fun前面是不是要加a或者what改fun? 为什么是what great fun it is!而不是what a great fun it is! 英语的fun可数吗?是What a great fun it is!还是What great fun it is! what a fun和how fun的用法是what a fun it is to do sth还是how fun ? It is great fun ___(play)the piano . What fun it is 和How fun it is 后面加doing还是to do What fun it is How fun it is ,怎么用,仔细点 为什么说what fun it is!而不用how fun it is?这是什么句型? It's fun to go for a spring outing.___ ___it is tIt's fun to go for a spring outing.___ ___it is to go for a spring outing!答案是what fun.为什么不是how funny呢？不是it is+adj.为什么题目中是it's fun？