This pair of glasses is similar to ______ you bought last week.A.the one B.the one which
问题描述：
This pair of glasses is similar to ______ you bought last week.A.the one B.the one which
答
which 这个是定语从句，to 是介词，所以用which
答
选a 省略了that.
先行词是不定代词one,不能用which修饰,只能用that