Infer why you think roger is surprised by how mrs. jones's actions. then describe his reaction to the way mrs. jones treats him.

Without having the story, I cannot give you the answer, but I can help you to come up with the answer.  What is it about Mrs. Jones's actions that would surprise anyone, including you?  Based on that, how do you think Roger would be surprised.  Once you answer that part, how does his reaction to her treatment warrant that type of reaction?  For example, if you were to say Roger was surprised Mrs. Jones was so nice to him because for the entire year, he thought that she hated him.