The boy laughed at is my son.转换成以前的定语从句哪一句正确
问题描述:
The boy laughed at is my son.转换成以前的定语从句哪一句正确
The boy who is laughed at is my son
The boy who was laughed at is my son
The boy who is being laughed at is my son
答
The boy who was laughed at is my son 这句是正确的