What were you doing wen the alarm rang?

It rang while I was playing basketball. / I was playing basketball when it rang.

I was playing guitar when it rang./ It rang while I was playing guitar.

I was cooking in the kitchen when it rang./ It rang while I was cooking in the kitchen.

I was sweeping the floor when it rang. / It rang while I was sweeping the floor.

I was cleaning my house when it rang. / It rang while I was cleaning my house.

It rang while I was listening to the music. / I was listening to the music when it rang.