Put the verbs in brackets into the past simple or past continuous. 1 When the teacher (come) into the room, two boys (play) football.

When the teacher **came** into the room, two boys **were playing** football.
Explanation: The teacher's action of entering is a single, completed action, so we use the past simple tense: 'came.' The boys were in the middle of playing when the teacher arrived, so it's an action in progress. Therefore, we use the past continuous tense: 'were playing'.