Ben was a pig. He was big and pink and very smart. He lived in a barn with a cow and a hen. When the farmer would ring a bell, Ben would
 eat his dinner. After dinner, Ben would go to sleep. Then he would walk outside.
 When did Ben eat dinner?
 O 1. when a bell was rung
 O 2. after he slept
 3. when he went outside
 O 4. in the morning