4 A: Did you get the bread rolls from the baker's? B: No, they (all/sell) by the time I got there.

Explanation: The phrase 'by the time I got there' indicates an action that was completed before another past action. This requires the past perfect passive. The structure is 'had been + past participle'. The past participle of 'sell' is 'sold'.

Answer: No, they had all been sold by the time I got there.