He is my brother,he is a teacher.Now,he is teaching students.(中文意思)

问题描述:

He is my brother,he is a teacher.Now,he is teaching students.(中文意思)
一定要回答完整,

这是我的哥哥,他是名老师.现在,他正在给学生上课.what,yesterday,was,day(连词成句)What day was yesterday?
昨天星期几?