15. Geysers are found near rivers and lakes, where water drains through the soil ______. A) surface below the deep B) deep below the surface C) the deep below surface D) the deep surface below

關係副詞

ex : Before that, he lived in a small village _________ he was born.

(A) where 　(B) when　(C) at which　(D) what

介係詞加上關係代名詞若是表示時間、地方、方法與原因時，就可以代換成關係副詞when、 where、how、why。本題原本要填的東西應該是 in which，此時就可以代換成指地方的關係副詞 where。所以，本題的答案當然就是(A) where。

(1) where 為表「地方」的關係副詞, 可代換成 in ( on , at ) which。

ex : Before that, he lived in a small village in which he was born.　= Before that, he lived in a small village where he was born.

ex : Mary walks into the living room where John is watching TV.