问题补充:
The generation makes it difficult for parents to understand their childrens opinions.
A. division
B. gap
C. separation
D. interval
答案:
A. division
(答案→)B. gap
C. separation
D. interval
解析:generation gap 代沟。division分,划分;separation分开;interval间隔,间隙;(幕间或工间)休息。at intervals 不时,时时