请选择DCBA0_5K(o'F:H/O0d4F.G7T:v — ________ does your father do?,N,\-V*C-U9@7f1Z
—He’s an engineer．,N,\-V*C-U9@7f1Z
A．Who,N,\-V*C-U9@7f1Z
B．What,N,\-V*C-U9@7f1Z
C．Which,N,\-V*C-U9@7f1Z
D．How old,N,\-V*C-U9@7f1Z