What did you do last weekend?
I worked on a project.
What did he do on Tuesday?
He worked on a project.
What did you do last weekend?
I visited my friend.
What did she do on Monday?
She practiced the piano.
Did you help your parents on Thursday?
No, I didn't. (I worked on a project.)
What did you do last weekend?
I helped my parents.
Did you help your parents on Thursday?
Yes, I did.
What did you do last weekend?
I talked on the phone.
What did you do last weekend?
I practiced the piano.
What did you do last weekend?
I used the computer.
What did she do last weekend?
She talked on the phone.
Did you use the computer on Tuesday?
Yes, I did.
Did you practice piano on Monday?
No, I didn't. (I used the computer.)