Why not take up some outdoor sports to relax ______ office work? It will also help keep you healthy

_____ the police thought he was the most likely one, since they had no exact proof about it,they had to set him free

Listening to loud music at rock concerts ______caused hearing loss in some teenagers.

There’s a ______in our office that when it’ssomebody’s birthday，theybring in a cake for us all to share．

ace of the global financial crisis, we must beall of __mind