误The class was divided in its opinion.
正The class were divided in its opinion.
析class是集体名词,当侧重整体时,谓语动词用单数形式; 侧重个体时用复数形式。
请在课后读几遍课文。误Please read the text several times after the class.
正Please read the text several times after class.
析表示“下课后”,应该说after class,在class前没有定冠词。