I can’t quite remember I was taken to Beijing.
A. that it was when
B. when it was that
C. when was it that
D. that was it when
网友回答
A. that it was when
(答案→)B. when it was that
C. when was it that
D. that was it when
解析：考查宾语从句和强调性句型，在宾语从句里，要使用陈述语气，强调性句型it is/was+that+被强调的内容，所以选B；句子意思“我不记得什么时候我被带到北京”