Heroes are made by the time they live in and _____ in time of danger or difficulty is one of the fine

qualities that can be found _____ them. [ ]

A. brave; in  

B. being brave; in  

D. bravery; of  

D. to be brave; of

鸦片战争改变了中国历史正常的发展历程，最主要体现在中国（）

A.革命任务发生变化

B.社会性质发生变化

C.开始向西方学习

D.反侵略斗争此起彼伏