The officer went through the case with great care.(cares,a/the care可用吗？）

Then I added with a smile ,'It's a strange mixture I make myselt.'(with smile可以这样吗)

All the things I had packed so carefully were soon in a dreadful mess.(mess抽象化可否)

This one must have been in the possession of a private collector and somehow managed to escape.(in possession of的区别，是否习惯用法？）

老师，名词具体化，名词抽象化用于介词宾语有什么区别与不同？