I don't remember how many years ago____I last showed you around the factory A.it was that B.it was B it was when
问题描述：
I don't remember how many years ago____I last showed you around the factory A.it was that B.it was
B it was when
答
a，强调句
答
A
答
我不记得多少年ago____I最后显示你去参观工厂,它是B.it
答
a