she is a teacher and ----(teach) English in Beijing.she is i

teaches
studies
首先,我们看主语she,这是一个第三人称单数
然后是谓语,谓语有两个,一个是is,还有一个就是我们要填的单词,既然主语是单数,当然用teaches.
然后,再看看第二个句子,同样的道理,主语是单数she,谓语也是两个is和我们要填的词,所以,也用单数,studies.