Problem: Continue the following story.

The machine was difficult to use for Donald unlike Nelson, because 
OPTIONS:
- Donald has used it in the past.
- Nelson has used it in the past.
Here's how I want to continue it: Nelson has used it in the past.

Problem: Continue the following story.

Monica is very social, Rebecca is not which is probably why the friendships of 
OPTIONS:
- Monica never fade.
- Rebecca never fade.
Here's how I want to continue it: Monica never fade.

Problem: Continue the following story.

The researcher chose to analyze the political speeches and ignore the writings. He must be more intrigued by the 
OPTIONS:
- speeches .
- writings .
Here's how I want to continue it:
speeches .