Evaluation answers the question: how does the writer say what he says? was what the writer said worthwhile? does the writer get his point across?

Evaluation answers the question:

"Was what the writer said worthwhile?".

Explanation:

If you evaluate something, you determine its importance and relevance. Therefore, evaluation is needed in order to answer the question: "Was what the writer said worthwhile?". In other words, by evaluating what the writer said, you fix its value.

they insisted that there was not enough time to learn everything.  

explanation:

if they were going to steal the answers that is simply because they insisted that there was not enough time to learn everything.  

no its not a run on sentence however i think you meant wet suits not sours also a run on sentence would be like surfers surf all winter long in southern california by using wet sours to keep them warm and the live their all year long