At his house, I suppose.
Because in the note, Xiao Bai mentioned that "请你回来以后给我打电话” (please call me when you get back)
Dbbdndnsnsnwnd d ndndndnsmns xbnxdnd. Jdjdbd d dnnsnd dnndndndndnd jjj jj
Did you spell that correctly?
1f= -a, -am, -ae, -ās
2m= -us, -um, -ī, -os
2n= -um, -um, -a, -a
3mf= (modified stem/various), -em/īm, -ēs, -ēs/īs
3n= -(modified stem/various), -(modified stem/ various), -a/īa, -a/īa
Present tense= -o, -s, -t, -mus, -tis, -nt
Hope that helps!