What is your grandpa doing?

I do my homework on Saturdays.

What do you like to do after school?

I often stay at home on the weekends.

She often climbs the mountain on Sunday.

A: Do you often (做作业) on Saturday?

B: Yes, I do. And sometimes I (看一部电影) with my mom.

A: What does your father often do (在周末)?

B: He often (爬山).

A: Does your brother climb the mountain with your father?

B: (不，他不爬). He often plays football.

— I am_______ exercise.