As is known to all, one of the many benefits of adventure travel is teaching children how to cope with unexpected.
A. the; /
B. /; an
C. the; the
D. /; the
网友回答
A. the; /
B. /; an
C. the; the
(答案→)D. /; the
解析：D 考查冠词。此处travel为不可数名词，其前用零冠词；第二空用定冠词the，与其后的过去分词unexpected连用，表示“意外的事情”。