Doing the laundry

A: Did you do the laundry?
B: Yes, I did.
A: What did you wash?
B: I washed the sheets and towels.
A: What about the pillowcases?
B: Yes, I took them off the pillows and washed them.
A: Did you dry everything in the dryer?
B: Yes, I dried everything in the dryer.
A: Then what did you do?
B: I folded all the towels.
A: Did you put the sheets on the beds?
B: Yes, and I put the pillowcases on the pillows.