What did you do yesterday? (Past: run)
I ran.
What did you do yesterday? (Past: watch)
I watched TV.
What did you do yesterday? (past: write)
I wrote a letter.
What did you do yesterday? (Past: Water)
I watered the flowers.
What did you do yesterday? (Past: eat)
I ate some popcorn
What did you do yesterday? (Past: go)
I went to school.
What did you do yesterday? (Past: Do)
I did my homework
What did you do yesterday? (Past: read)
I read a book.