1、带定语从句的特殊疑问句
Who(表) is(谓) it(主) that had the computer on the whole night(定语从句)?
注意这个定语从句的语法：that(关系代词,代替先行词it,在从句中作主语) had(谓语) the computer(宾语) on(副词做宾补) the whole night(状语)
2、带定语从句的陈述句
Only(限定性副词) those(主语) whom he knew very well(定语从句) could be given(谓语) a free ride(宾语).
注意这个定语从句的语法：whom(关系代词,代替先行词those,在从句中做动词knew的宾语,可省略) he(主语) knew(谓语) very well(状语)
3、带定语从句的陈述句
That(主语) who breaks the law(定语从句) will be punished(谓语).
注意这个定语从句的语法：who(关系代词,代替先行词That,在从句中作主语) breaks(谓语) the law(宾语)
——【译苦思甜】团队成员荣誉回答