We must create a safe and international environment of lasting peace.
A. extreme
B. generous
C. reliable
D. useful
网友回答
A. extreme
B. generous
(答案→)C. reliable
D. useful
解析:词义辨析。Extreme极端的;generous 慷慨的,大方的;reliable可靠的;useful
有用的。句意:我们必须创造一个安全可靠的国际环境来维持和平。所以选C。