Answer:
They didn't use to get their mail at home.
People didn't use to have washing machines.
Women used to make clothes for their children. They didn't use to buy them in the stores.
Explanation:
We use the phrase used to + infinitive to talk about past situations that are no longer true. The negative form of used to is didn't use to. People often add -d to use (didn't used to), but many consider this incorrect, which is why you should avoid doing this.
The lives of people who lived a long time ago and our lives are completely different. In the given sentences, we should use the forms that express this.