Problem: If "We had hoped to place copies of our newsletter on all the chairs in the auditorium, but there were simply too many of them.", is "There were simply too many copies of the newsletter." correct?

Answer: no

Problem: If "Fred is the only man alive who still remembers my father as an infant. When Fred first saw my father, he was twelve years old.", is "When Fred first saw my father, My father was twelve years old." correct?

Answer: no

Problem: If "I stuck a pin through a carrot. When I pulled the pin out, it left a hole.", is "The carrot left a hole." correct?

Answer:
no