**Bài 1:**
14. My father **worked** very far from home before.
15. Those men **suffered** a lot before they finally succeeded in their business.
**Bài 2:**
1. This **used to be** only a small company with several years of low profit, but now it has changed a lot.
2. Men **used to be** the breadwinners of the family, and women depended greatly on men.
3. My sister admitted that she **used to lie** sometimes in the past, but now she doesn’t.
4. Jim asked me what I **used to prefer** to do as a child that I no longer did now.
5. Who **used to take care** of you when you were a toddler?
6. Jim **didn’t use to be** interested in reading books when he was small, but now he’s really into it.
7. I **used to get** all the attention from my parents before my little brother was born.
8. Bungalows **were** very popular 6 years ago. (You can also say "Bungalows **used to be** very popular 6 years ago" for consistency with the request for past actions.)