That is fun to swim in the river in summer.这句话哪错了

That is fun to swim in the river in summer.这句话哪错了 lt is fun to swim in summer.(感叹句） ______ _______it is to swim in summer! what fun it is to swim 为什么不能用how?fun为形容词为什么不行，陈述句形式It is fun ti swim, It is fun ------ in the sea in summer A to swim B swim C swims D to swimming What fun it is to swim!How fun it is to swim!What a fun it is to swim!哪个句子正确?为什么?fun 可以为名词 也可以为形容词吧！What a shame!多么遗憾的一件事！为什么就不能是What a fun it is to swim! （）it is to have a swim in hot summerA:what a fun B:what fun C:how fun D:how a fun 改错 It is fun swim in summer. what a fun it is to swim in summer.为什么要去掉a呢?不是how fun啊 单句改错：Is a great fun to swim in the river on a hot day great fun 和a great funIt is ()to swim in the swimming pool in summer.A.great fun B.funnyC.a great fun D.great funny ____it is to have a swim in summer!A.what a fun B.how fun C.what fun D.how funny This dress is that -----(swim) ______ it is to jump into cool water to swim in such hot weather.what fun 为什么不用为什么不用what a fun 或者how funny Is‘s fun（ ）in the swimming pool选什么A to swim B swimming C swims you can not imagine what fun it is to swim in the sea with my family 中为什么用 what fun it is fun to swim in the summer.many students like swimming.短文纠错,救急Is is fun to swim in the summer.Many students like swimming.Swimming is my favorite sports.I often goes for a swim with some of my friends at weekend.We always have a fun ___ ___ 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 ____ it is to swim in the cool water in ____ hot weather!A.fun,so B.fun,/ C.a fun,the D.a fun,a为何不选A?