不是一定用the的
比如 i meet a beautifu girl . a/an 为定冠词 the 为不定冠词,形容词前有冠词修饰,具体情况具体分析。定语从句也是一样,不一定要用the
比如:i love these precious books that i bought yesterday.
不是所有的都要用the的,定语也不一定,这个要看这个名词是第几次在文章中提到,要综合语意
I saw a film yesterday. The film was ended at eight o'clock.