问题
选择题
I haven’t seen______ this since I collected stamps.
A．as old a stamp as
B．so an old stamp as
C．stamp as old as
D．as an old stamp a
答案
答案：A
表示“象这么旧的邮票”可用以下形式表达：as old a stamp as this； a stamp as old as this；否定句中前一个as可用so。