你好,应该是：
She has brother and she is a teacher.
她有哥哥（弟弟），而且她是一个老师。
~~~~~~~~~~～～~~~~~~~~祝你进步，如对你有帮助，请及时采纳~~~~~~~~~~~~~~~~~~~~~~~~
She has brother.根本是个错误句子，出题有问题。别坑小学生。二句合并有多种方法，是合成并列句还是复合句还是简单句？什么都没说清楚。
she is a teacher who has a brother. 她是一个有哥哥的老师 望采纳
she is a teacher and has a brother. 她是一个老师而且有个弟弟。 肯定对 有问题还可以问我
She has a brother who/that is a teacher.
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