It is fun...or It is funny..How to say?Why?

___great fun it is It is fun...or It is funny..How to say?Why? it is so much fun it is really fun.翻译 it is fun ____(draw) it is true or 用 and,but,or填空Boating is fun.It is slow (Is it crazy?or is it just it is funny 和it is fun有什么区别? it is funny 和it is fun有什么区别? 改错 It is fun swim in summer. It is fun to do sth造句 It is fun to do sth.造句. What a ____(fun)story it is! what fun it is to=how____ it is fun to do 还是 doing? it is great fun后应加什么时态 为什么是what fun it is to.