I like music:我喜欢音乐; I like the music:我喜欢这首歌,(特指前面提到的那首歌曲)
that it is too expensive是that引导的定语从句,此时that是先行词(引导词),that is too expensive中的that是代词,只前面提到的那样东西.可以这么举例说吧,
I had not bought the purse because of that it is too expensive
.和I had not bought the purse because that (可用it替代)is too expensive意思都是我没有买那个钱包,因为它太贵了.需要注意的是because和 because of的区别.
in style=in an impressive way:气派,隆重,气势非凡.
She always celebrates her birthday in style:她生日总是过得很排场.