—Who is the old man talking with your teacher?
—I don’t know. I him before.
A. was never seeing
B. had never seen
C. never saw
D. wouldn’t see
网友回答
A. was never seeing
B. had never seen
(答案→)C. never saw
D. wouldn’t see
解析：before表示要用过去时，意为“我以前从未见过他”可排除B、A，并根据上下文语境，排除D。