问题补充:
—What did he say just now?
—He asked me.
A. when my sister came back
B. when did my sister come back
C. when my sister will come back
D. when my sister comes back
答案:
(答案→)A. when my sister came back
B. when did my sister come back
C. when my sister will come back
D. when my sister comes back
解析:句意:他刚才说了什么?结合语境可知下文从句中描述的是过去的动作,故用一般过去时态。宾语从句中一般为陈述语序。故选A。