以鉴别诊断立论的外科学著作是（）

A.《疡科纲要》

B.《疡医大全》

C.《疡科心得集》

D.《外科正宗》

E.《外科理例》

—What did he say just now?

—He asked me _________.[ ]

A. when my sister came back

B. when did my sister come back

C. when will my sister come back