根据下列句子及所给单词写出单词的正确形式，或根据汉语注释写出相应单词。
Maybe under these ________（境况）we may say that man can conquer nature. 
The fence was ________（加固）with wire.
The patient was lying on the floor________（失去知觉）
The meeting discussed how to ________（促进）the co-operation between the two countries.
In our country most of the population are employed in ________（农业）
The ________ (大部分) of children in our class have brown eyes; only three have blue eyes.
When I entered the room, he was ________ (聊天) with a stranger.
Everyone should go ________ (上船) on time. 
These include the ______(苦难)of the poor, and the corruption of the rich. 
In China parents often make______(牺牲) in order to educate their children.