给下列句子选择相应的答句。
(   )（1）Did you take Amy’s doll ?                      

A．I lost my key ( )（2）What are you doing ?

B．Yes , I did . It isn’t here ()（3）Did you look for it in your bag ?

C．Yes , it is . ()（4）Is this your hat ?

D．I came back last Wednesday

(   )（5）Did they come for the music competition ?         E. No , I didn’t .
(   )（6）When did you come back ?                      F. I played the flute .
(   )（7）Where did you go last Saturday ?                 G. I fell off the tree.
(   )（8）What did you do ?                             H. Yes , they did .
(   )（9） What happened to you ?                       I. He fell over .
(    )（10）What happened to the boy ?                    J. I went to the park .