新概念一定语从句he is the person I have heared about想问一下,关系代词为什么可以省略,它在句中是什么成分关系代词省略了，它在句中做什么成分啊，为什么

新概念一定语从句he is the person I have heared about想问一下,关系代词为什么可以省略,它在句中是什么成分关系代词省略了，它在句中做什么成分啊，为什么 The reason why he is here is simple.是同位语从句还是定语从句? The man is my brother.He is standing under the tree.用定语从句修改 He is not the man that he once was是定语从句吗? he is not the man that he once was定语从句怎么拆成2句? He is the student.he comes to school first everyday.连成一个定语从句 定语从句 is this the reason （ ）he was lat定语从句 is this the reason （ ）he was late for class He says he is the man who bought these books是不是定语从句?这句话是定语从句还是谓语从句?如果您知道的话请告诉我.. Which is known to all,he is the best student in our class?定语从句改错 Whose is known to all,he is the best student in our class?定语从句改错 the write is David ,he has written many wonderful characters the writer ______is David 定语从句 The man is in the next room.He bought our text books here yesterday把两个句子转化一句定语从句 这句话的定语从句能省略吗1.He is the man who I served. the boy came to see me yesterday.he is tom's brother .改为定语从句 you met the boy here yesterday；he is my brother改为定语从句 What is the reason that he gave for this?为什么是定语从句啊 The story-book is good.He isreading it.把句子合并成定语从句的复合句 He is the man.I borrowed money from him .该定语从句