举例说明
1，Yesterday i bought a new bike . it is blue.(it指前文刚提到的名词单数）
2.I have many friends . They are all young.(they前文刚提到的名词复数）
3.A bridge made of stone is stronger than one made of wood（one是单数与前文不定冠词对应
4. The bridge made of stone is stronger than that made of wood.（that=the one 表示特指与前文定冠词the对应）
5.The people who are standing there are those(=the ones) from Japan
（the ones 与those复数特指，与定冠词the people对应）
6 .Bridges made of stone are stronger than ones made od wood(ones不定指的复数，与前文的bridges 对应）
亲，给个好评吧
追问那在一个句子中出现the的时候一定得用one吗？that可以用的吗？不要用the one的
在一个句子中出现the。如果it，that，those，this等词都不要用的，答案只能用one或者that，到底要用哪个词，