They have no idea at all .A. where he has goneB. where did he go C. which place he has gon

问题补充：

They have no idea at all .

A. where he has gone

B. where did he go

C. which place he has gone

D. where he has gone

答案：

(答案→)A. where he has gone

B. where did he go

C. which place he has gone

D. where he has gone

解析：主要测试同位语从句。参看上文。译文：他根本不知道他走向何方。