1 l used to be to turn off the TV.
2 l used to be a pen to write the homework.
3 l used to be mouse for playing computer.
4 l used to be drink tea, but now I drink coffee.
5 l used to be to sing, but now I haven't got good voice.
6 l used to be to play tennis a lot but I don't play very often now.
7 l used to be to watch cartoons when I was a kid.
8 А вот одно сам придумай! :)