Dependent prepositions

Sarah is researching ___ computer technology at university.

Jane has a very important job with a computer company and is always ___ the move.

Is that the digital camera that you won ___ the competition?

Shhh! I'm trying to listen ___ the radio!

I was so bored ___ the journey. I wish I'd had my laptop.

He's hooked ___ computer games. He stays up all night playing them.

I'm not very keen ___ modern technology. A lot of it is too confusing for me.