根据句子意思和所给的首字母写出所缺单词。要求在答题卷上写出完整的单词。（每空只写一词）
Most people will feel h____  when they are away from their homes for a long time.
Whether to go or not. It’s difficult for me to make a d____ 
We hope our f____  will last forever.
He works hard every day. I think he will a____  his ambition one day.
The student not only learn k____ from the textbooks but also from different activities.

阅读下面这首唐诗，回答问题。

感遇（其三）

陈子昂

苍苍丁零^①塞．今古缅荒途。亭堠^②何摧兀^③，暴骨无全躯。黄沙漠南^④起，

白日隐西隅。汉甲三十万，曾以事匈奴。但见沙场死，谁怜塞上孤!

注：①丁零：是古代的少数民族，汉代臣属匈奴，游牧于我国北部和西北部边地，元魏时称铁勒或敕勒，唐时称回纥。 ②亭堠：戍边的城堡。  ③何摧兀”：多么险峻。④漠南：蒙古大沙漠以南，即今内蒙古一带。

我国全面深化改革，必须立足于我国             这个最大实际，坚持仍是解决我国所有问题的关键这个重大战略判断。（     ）