这就是我的老师 This is my teacher ; This is what my teacher

这些是我的老师 Those are my teacher

这是我的新老师 This is my new teacher

这些都是我的老师 Those are my teacher

这位是我们的张老师 This is our Teacher Chang ; The our teacher

这是我的语文老师 This is my Chinese teacher ; This is my language teacher

这是为我们的美术老师 It's for our art teacher

这个是我的语文老师 This is my language teacher ; This is my Chinese teacher