Problem: Ann asked Mary what time the library closes, but *she* had forgotten.

Do "she" and "Ann" mean the same thing?

Answer: no


Problem: Sara borrowed the book from the library because she needs *it* for an article she is working on. She reads it when she gets home from work.

Do "it" and "the book" mean the same thing?

Answer: yes


Problem: Mark heard Steve 's feet going down the ladder. The door of the shop closed after *him* . He ran to look out the window.

Do "him" and "Steve" mean the same thing?

Answer:
yes