请选择DCBA2J9a-Y+I)~5t -Who is the young man?,D.i9X)c+s4q'X+B/H(M-G6P7R
-He' s__________.,D.i9X)c+s4q'X+B/H(M-G6P7R
A.twenty,D.i9X)c+s4q'X+B/H(M-G6P7R
B.a teacher,D.i9X)c+s4q'X+B/H(M-G6P7R
C.my brother,D.i9X)c+s4q'X+B/H(M-G6P7R
D.in the room,D.i9X)c+s4q'X+B/H(M-G6P7R