I don’t remember how many years ago I last showed you around the old campus.
A. it was that
B. was it that
C. it was which
D. was it when
网友回答
(答案→)A. it was that
B. was it that
C. it was which
D. was it when
解析： 本题考查强调句和宾语从句的语序。it was … that是强调句的标志词，句中的宾语从句how many years ago it was that...由强调句it was many years ago that...转化而来。句意：我不知道我上次是多少年前带你参观老校园的。故A正确。