怎么变定语从句

问题描述:

怎么变定语从句
1,I know the boy.He can speak English well.
2,I gave Mr li a card for Teachers'Day.It was made by myself.
随便问一下怎么样变定语从句有没有什么窍门公式,定语从句中什么时候用where which that

i know the boy who can speak English well.i gave mr li a card for teachers's day which was made by myself定语从句修饰的名词或代词:地点就用where,which修饰物,人就用whothat可以修饰人/物特殊情况 (1)只...