一道初中英语It was really fun请问这里的fun可用谁来替换?A funnyB interesting请务

my father took me there ,it was really Aa great fun B a fun make it a really fun day Was it fun?的意思 It was (r )fun fun,fun和interesting的用法 it is really fun.翻译 一道初中英语题---fun it is to ride in the electric car A.what B.wha What ------great fun to read ------interesting book it is!A What -----fun it is to have a picinc in a park!这里的fun 是做名词还是 really fun was a fun mov fun与interesting的区别