I a new song last month.
--- Your classroom is very clean.--- Sure. It ________ after school every day.
They _______ here for more than ten years.
---Oh, your computer is so nice. ____ did you buy it?---Thanks. I bought it in Wangfujing Dajie.
John had to start work at an early age, ____ his family was very poor.
When I got to Linda’s home yesterday, she _______ her mother with the housework.