将定语从句Which Barbara Jones offers to her fans is honesty and happiness.转换成非谓语动词作定语。

这是一句错句，应该是what Barbara Jones offers to her fans is honesty and happiness这句中没有任何一个是定语。前面是主语从句，加上一系动词，最后是一并列表语。所以改不了定语从句。
你的第二个问题：定语从句一般都可改为非谓语动词做定语，如
Thy boy who is standing at the door is our monitor.=the boy standing at the door is our monitor.
The meeting that/which was held yesterday is very important.=the meeting held yesterday is very important.

我怎么觉得你的句子应该是
What Barbara Jones offers to her fans is honesty and happiness.

这是真命题吗? 费了半天脑, 想像即使加上前后文,也未见得是个定语从句吧楼主? 可别忽悠银哪!

鄙视楼主, 问题补充又不是定语从句. 浪费银的感情. 不再答你!!!