There is a growing______for people to work at home instead of in offices. 

In a way it was a(n)______ to know exactly what we were up against.

He is always travelling all over the world, which broadens his _______．

. It’s no ____that you can’t find anybody here. They are all away at a meeting at the moment. 

As is well known, the brain performs a very important _______, which controls the nerve system of the body.