這句話的that是引導(dǎo)同位語從句嗎?
When reformers in the northern states put pressure on Congress not to permit slavery in western territories ( that) later became states,some of the southern states wanted to secede,or withdraw,from the United States.
這里的that引導(dǎo)的 later became states是同位語從句嗎?
還是引導(dǎo)定語從句呢？感覺應(yīng)該是定語從句，that 在定語從句中作主語。