Complete the centences with the correct form of the verbs in the past simple, past continous or past perfect
1. While I (walk) ... to school, I (see) ... a poster about a gig.
2. My friend (be) very upset someone (steal) ... her bag.
3. I (want) ... for the bus when I (hear) ... someone call my name
4. They (eat) ... fish and chips when (come) ... into the cafe
5. When she (arrive) ... at the party, her friend (leave) ... five minutes before