Fill in the gaps with the Past Perfect or the Past

Fill in the gaps with the Past Perfect or the Past Simple.
1nbsp; nbsp;
A: ........ (you/manage) to catch the 8 oclock train last night?
B: No, it........(already/leave) when I ........ (get) there.
2nbsp; nbsp;
A: What........(Helen/do) when she........(arrive) home?
B: Well, she........ (make) something to eat and then she........(go) to bed.
3
A: Why.......(Sarah/be) so upset last night?
B: Before she........ (come) to find us, she........(get) in a fight with her sister.
4
A: ........ (the children/see) their father yesterday?
B: No. By the time he........(drive) back from the city, they........(already/fall) asleep.