Beihai Park is one of the most beautiful parks ___ built about 300 years ago in Beijing.a.which were b.where werec.that was d.that were选D,为什么?

问题描述:

Beihai Park is one of the most beautiful parks ___ built about 300 years ago in Beijing.
a.which were b.where were
c.that was d.that were
选D,为什么?

北海公园是大概在300年前在北京建造的最有名的公元之一.
主语是公园,因此,定语从句的引导词应该是来修饰物体的that或者which.但是one做主语的话,只能用that.
所以答案只能选D.