It was not he took off his dark glasses I realized he was a famous singer.
A. when; that
B. until; that
C. until; when
D. when; then
网友回答
A. when; that
(答案→)B. until; that
C. until; when
D. when; then
解析：句意：正是直到他摘下他的墨镜我才意识到他是一个著名的歌星。not......until......直到......才.......; . 强调句的结构：It was +被强调的内容+that+剩余内容；第一空not until he took off his dark glasses是被强调的内容，第二空用that来引导剩余内容。故选B。