He read his textbooks carefully and made concept maps to help him remember the details. The dates were giving him trouble, though, so he tried to memorize them by reading them aloud and then saying them without looking in the book. He also made a time line and flashcards to help him remember important facts.
Answer:
The Birds flew south to their winter home.
Explanation:
When you study basic English Grammar one of the first topics is the personal pronouns:
I ( Singular)
You ( Singular or plural)
He ( Singular)
She ( Singular)
It ( Singular)
We (Plural)
They (Plural)
The Pronoun The birds must be substituted by They flew south.....
