Problem: Fred is the only man alive who still remembers my father as an infant. When Fred first saw my father , *he* was twelve months old.

Are "he" and "Fred" the same?
Answer: no

Problem: In the storm, the tree fell down and crashed through the roof of my house. Now, I have to get *it* repaired.

Are "it" and "the roof" the same?
Answer: yes

Problem: Beth didn't get angry with Sally , who had cut her off, because *she* stopped and counted to ten.

Are "she" and "Sally" the same?
Answer: no

Problem: After I saw Bill catching flies and pulling off their wings, I boxed his ears. I showed the master the flies, some crushed and some crawling about helpless, and I showed him the wings on the window sill. I never saw *him* so angry before; but as Bill was still howling and whining, like the coward that he was, he did not give him any more punishment of that kind, but set him up on a stool for the rest of the afternoon, and said that he should not go out to play for that week.

Are "him" and "Bill" the same?
Answer:
no