Perp-T1-Q126

[hibiscus]

126 The agreement, the first to formally require industrialized countries to cut emissions of gases linked to global warming, is a formal protocol by which 38 industrialized countries must reduce emissions of these gases by 2012 or face heavy penalties.

(A) by which
(B) for which
(C) under which
(D) such that
(E) wherein

答案....C
請問為什麼要選under which呢?
謝謝...

[speed713]

under常常用在某某規定,規章,制度之下的意思.

這一整句話是說38 industrialized countries must reduce emissions of these gases by 2012 under the agreement,不然就會 face heavy penalties.

主詞逗號後面那一段只是描述主詞的廢話(有時後可以跳過,考閱讀的時候也常常是先跳過,先找到後面到底再說什麼東西比較重要)