Some people argue using nature to meet our own needs may spell disaster, unless we start to look around and understand how clean environment benefits us all.
A. /; a
B. the; the
C. the; a
D. a; a
网友回答
(答案→)A. /; a
B. the; the
C. the; a
D. a; a
解析：考查冠词;第一空不填，nature是抽象名词，第二空填a，指一个清洁的环境，句意是：有些人认为利用自然来满足我们的需求可能会带来灾难，除非我们开始环顾四周，理解一个清洁的环境怎么使我们所有人的受益。