Prepositions 'aan - bij'

.....(aan) the end of the story.

My brother works.....(bij) the bank.

....(Bij) our arrival we were welcomed by our family.

We discussed the matter ....(bij) a nice cup of coffee.

This weekend I'm staying .....(bij) a friend.

Everyone was invited to the party....(behalve) Janet.

.....(Behalve) Janet, many other team members were invited to the party.

I'm glad he didn't die .....(aan) a heart attack.

My little brother turned up with a glamourous actress.....(aan) his arm.

Researchers were convinced that one infectious agent was .....(aan het) work"