1 They went/had gone shopping and bought/
had bought a tent for their hiking trip.
2 She read/has read the book a few years ago.
3 They drove/were driving to the house when
the car broke/was breaking down.
4 When did you start/have you started rock
climbing?
5 They realised/were realising that they were
losing/had lost their way so they stopped/
had stopped to get directions.​