. -______ hard work you have done! -It’s very kind of you to say so.
--- 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.