Bài 5: Viết lại câu, sử dụng cấu trúc “used to”
1. My mother worked at a restaurant 3 years ago but now she doesn’t. 
. My mother used to work at a restaurant 3 years ago but now she doesn’t.
2. He was the president of Student Union but now he isn’t.
. He used to be the president of Student Union but now he isn’t.
3. There were many tree-lined streets in my hometown but now there is none of them. 
 There used to be many tree-lined streets in my hometown but now there is none of them.
4. My husband didn’t do housework but now he does.
My husband didn't use to do housework but now he does.
5. Children didn’t play with high-tech devices at an early age but now they do. 
Children didn't use to play with high-tech devices at an early age but now they do.
6. The students didn’t go to school by public transportation but now they do.
The students didn't use to go to school by public transportation but now they do.
Chúc bạn học tốt ! ^-^