Bill is the subject.told is the verb. And truth is the direct object.
Hope this helps
The event that is most likely is Aylmer's love for his wife and for science conflict.
Explanation:
Aylmer is a scientist who believes in the natural philosophy as well as loves his wife, Georgia dearly. However, Georgia has a birthmark on her face which stands as a barrier to her beauty and Aylmer feels uncomfortable with it though he really loves her. He believes with the help of science he can remove the mark. However, Georgia is not really fine with it in the beginning.
The event that is most likely is Aylmer's love for his wife and for science conflict. Yet, Georgia insists Aylmer to take away the mark even if she dies, and Aylmer believes that taking away the mark will not do anything to her. However, she dies in the end.