Prepositions of Place Quiz: in, at or on?

I live _____ Manchester, a big city ______ England

Sorry I couldn't answer your phonecall, I was ______ work

My friend doesn't post much ______ social media, because he thinks it's a waste of time

There is a really nice cafe that sells fresh bread and cakes  ______ the ground floor of my apartment building

My colleague Jenny wasn't ______ work today, because she was sick and spent the day _____ bed

There was a big queue and the cashier _____ the supermarket told me he would be with me _____ a moment 

John's landlord owns and rents out seven houses _____ the moment

Rebecca and Ryan have known each other for 20 years: they met _____ school in 2005

I like to go skiing _____ the Alps every winter, but it's very expensive ____ the moment

George stood ______ top of the mountain and looked at the incredible view