They are having an English class.What is the English teacherdoing now?

问题描述:

They are having an English class.What is the English teacherdoing now?

这里运用的是现在进行时:be +doing,通常会有时间词now,也就是现在
上英语课:have an English class
上语文课:have a Chinese class
整句话的意思是:他们正在上英语课,现在英语老师在做什么呢?