It wasn’t the anti-Japanese war was over his parents had died two years before
A. until; did he know
B. until; that he knew
C. unless; that he knew
D. until; when he knew
网友回答
A. until; did he know
(答案→)B. until; that he knew
C. unless; that he knew
D. until; when he knew
解析：考查强调句。本题考查强调结构it is / was + 强调部分 + that从句和not … until …，构成it is / was not until + 从句 + that + 主句。故选B。