Prepositions 'aan - bij'

(a)   (aan) the end of the story.

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

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

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

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

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

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

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

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

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