Mandarin

I went to work early and came home mid-afternoon. Daughter #2 brought her friend Annabell round. I then went back to work and was there until 7pm. I popped into the pub for one drink before returning home. When I got home, my son was sat at the computer learning his mandarin and apparently had been there for some time.
He showed me his revision notes. I thought it was worth a blip !