18. Freedom of speech is a fundamental human right, enshrined ________ Article 19 of the Universal Declaration of Human Rights.
(A) with
(B) in
(C) to
(D) at

be enshrined in sth. (權利‧‧‧‧)被莊嚴載入

所以此處應填 "in"  (記載在某物"裡面")

言論自由是一項基本人權，載於《世界人權宣言》第 19 條。

shrine 
聖地；神龕；聖壇；神殿；紀念之所

Islam's most sacred shrine is at Mecca in Saudi Arabia.
伊斯蘭教最神聖的聖殿位於沙烏地阿拉伯的麥加。

She's turned her bedroom into a shrine to the dead pop star and covered the walls with pictures of him.
她把自己的臥室變成了紀念那位已故流行歌星的地方，牆上貼滿了他的照片。


enshrine
to contain or keep something as if in a holy place
把…奉爲神聖；珍藏

A lot of memories are enshrined in this photograph album.
這本相簿裡珍藏著許多記憶。


be enshrined in sth
 
If a political or social right is enshrined in something, it is protected by being included in it.
（政治或社會權利）被莊嚴載入

The right of freedom of speech is enshrined in law/in the constitution.
言論自由的權利被莊嚴載入法律／憲法。