Choose the correct option

1. What
   [have you been doing|had you been doing] before mum got home?
2. I was ready to buy a new video game after I
   [watched|had watched] a video review.
3. I saw Jenny as I
   [had been walking|was walking] home. She was listening to music and didn't see me.
4. We were so nervous before the music competition. Every band that performed before us
   [had been|was] amazing and welcomed by the audience.
5. Tim couldn't go out with friends until he
   [helped|had helped] his mother with cleaning the house.
6. I couldn't believe that was Margaret. I
   [have never seen|had never seen] her before in my life.