老师正在上课英语

The teacher was giving a lecture==================================================================你好！很高兴为您解答，祝你学习进步，身体健康，家庭和谐！有不明白的可以追问！如果有其他问题请另发或点击向我求助，答题不易，请谅解.如果您认可我的回答，请点击下面的【采纳为满意回答】或者点评价给好评，谢谢！你的好评是我前进的动力。

The teacher is having a lesson。

The teacher is having a class.

The teacher is teaching a class in xxxx with English.a class in xxxx 一堂 xxxx 课， 如历史，地理，数学，……等等。

The teacher is teaching.