We have no idea at all .
A. where he has gone
B. where did he go
C. which place has he gone
D. where has he gone
网友回答
(答案→)A. where he has gone
B. where did he go
C. which place has he gone
D. where has he gone
解析：该题后面接的是同位语从句，应用陈述语序。B选项时态和语序都不对;C项语序不对，搭配也不对（go是不及物动词，应接to）;D项语序不对。