1) We WERE WATCHING TV when we HEARD a strange noise.
2) He DIDN'T GO OUT last night because he WAS LOOKING AFTER his younger brother.
3) WERE YOU SITTING on the balcony when I PHONED you?
4) I WASN'T RUNNIG when I FEL.
5) DID THE ACCIDENT HAPPENED because the driver WAS DRIVING too fast ?
6) What WAS SHE WEARING when you SAW her ?