a dog' work is never done解析一下

Never was a good work done without great effort.意思 the dog is mine.the dog is eating a done.改成定语从句. a dog is never too old to learn new tricks the work is going to be done in a month Never was a good work done without great effort.求大神分析此句型?倒装吗 ()What dog never barks?A.big dog the work is done by A barking dog never bites. Never teach a dog to 智力测试（英语）What dog never barks?What letter is a drink?What is 20.It is vital that the work _______ in time. A. is done B. ____ a good beginning is made,the work is half done.