I was listening to ___wonderful music when there was __knock on the door这个是什么时态的句子呢 请

I was listening to ___wonderful music when there was __knock on the door这个是什么时态的句子呢 请
I was listening to ___wonderful music when there was __knock on the door
这个是什么时态的句子呢 请

I was listening to ___wonderful music when there was __knock on the door这个是什么时态的句子呢 请
这句话的主句到MUSIC,是过去进行时.when引导的时间从句是过去时

主句I was listening to是过去进行时，后面加了一个 when引导的时间状语从句，从句是过去时。

过去式。

主句是过去进行时态，从句是过去时态