his homework he went out to play.A. Having doneB. DoneC. He has doneD. He had done

问题补充：

his homework, he went out to play.

A. Having done

B. Done

C. He has done

D. He had done

答案：

(答案→)A. Having done

B. Done

C. He has done

D. He had done

解析：having done是现在分词的完成式，表示动作完成。