A.He played basketball with his friends.B.She did her homework.C.He flies a kite in the park.

【答案】A

【解析】

该问句句意为鲍勃做了什么？一般过去时，答句A. He played basketball with his friends.他和她的朋友打篮球。符合题意。B. She did her homework.主语为女人，不对 C. He flies a kite in the park.时态不对。故答案为A。