Necesito 10 oraciones asi : i was playing when i heard the phone?

I was taking a shower when somebody call me

i was sleeping when i heard a noise

I was listening to music when the light goes away

I was eating when my mom knocked the door

I was buying when i discovered another store

I was singing in the shower when my sister listened to me

I was drying my hair when the machine turned off

I was reading when my best friend sent me a message

I was chatting when my phone turned off

I was playing the piano when my dog started to bark.