Problem: If "The man lifted the boy onto his shoulders.", is "The man lifted the boy onto the man's shoulders." correct?

Answer: yes


Problem: If "The man couldn't lift his son because he was so weak.", is "The man was so weak." correct?

Answer: yes


Problem: If "Joan made sure to thank Susan for all the help she had given.", is "Joan made sure to thank Susan for all the help Susan had given." correct?

Answer:
yes