--- Did you know __________?
--- He was ill in hospital.
A．why he doesn’t come to school
B．why he didn’t come to school
C．why does he come to school
D．why did he come to school
--- Your classroom is very clean.
--- Sure. It ________ after school every day.
A．is cleaned B．cleans C．cleaned D．is cleaning
They _______ here for more than ten years.
A．live B．lives C．are living D．have lived
---Oh, your computer is so nice. ____ did you buy it?
---Thanks. I bought it in Wangfujing Dajie.
A．When B．Where C．Which D．Whose
John had to start work at an early age, ____ his family was very poor.
A．or B．so C．but D．because
When I got to Linda’s home yesterday, she _______ her mother with the housework.
A．help B．helps C．was helping D．is helping
