问题补充:
He said that only after he went abroad what his motherland meant to him.
A. he realized
B. he had realized
C. had he realized
D. did he realize
答案:
A. he realized
B. he had realized
C. had he realized
(答案→)D. did he realize
解析:本题考查倒装结构。宾语从句中only放在居首,主句主谓要倒装,根据时态用一般过去时。选D。