请选择恰当的句子完成图中的对话，将其字母代号填入括号里。 

1.                     2.

                    ( )                                                           ( )

3.                      4.

                   ( )                                                            ( )

A. What's his name? 

B. Yes. He has short black hair. 

C. A Chinese friend? 

D. He's strong, too.