请选择DCBA1T(J+B*V2W-y4D/i'Z I want ________ a map of China．'x/x9F7U7O,h6T.m7C
A．buy'x/x9F7U7O,h6T.m7C
B．is buying'x/x9F7U7O,h6T.m7C
C．to buy'x/x9F7U7O,h6T.m7C
D．am buying'x/x9F7U7O,h6T.m7C