Ответ:
- Did Lena and Adam use to ask Gran questions about the world?
Yes, they did. - Did Lena and Adam use to have phones?
No, they didn’t. - How did Gran use to communicate?
She used to communicate by talking to people and writing letters. - Did the postman use to bring a lot of letters?
Yes, he did.
Questions use Did + subject + use to + base form. Short answers use did or didn’t.
