Complete the dialogues by putting the verbs into the past simple or the past continuous

1. A: Why
   [ ] late?

   B: I [ ] up late and [ ] the bus.

2. A: Sandra
   [ ] in the river when she
   [ ] a rock.

   B: Oh no! [ ] herself?

3. A:I
   [ ] you all afternoon yesterday but you
   [ ].

   B:I'm sorry. I [ ] at home.