Make sentences as shown in the exapmle.each sentence has one verb in the past continuousand one in the past simple. 1)i/have stoll/when/i/see/the/car accident 2)when/dad/enter the room/mother/singa lullaby. 3)she/sit down/on a chair/while/he/paint/her portrait. 4)when/we/come/from the party/he/listen to/one of his records

1. I have (?) when i saw the car accident.
2. When dad entered in the room, mother was singing a lullaby.
3. She sit down on a chair while he was painting her portrait.
4 When we came from the party, he was listening to one of the records.