Word building (nouns and verbs)

I'm reading an interesting book about the history of Antarctic (a)    (explore).

       1    Most people watch TV for (a)   (entertain) , and not to learn anything.

       1    You need a lot of (a)   (motivate) if you want to be good at a sport.

       1    It was difficult to (a)   (rescue) the walkers from the middle of the desert.

       1    You need to use your (a)   (imagine) to write a good story.

       1    It takes a lot of (a)   (prepare) and planning to climb a big mountain.

I work very hard all week, so I need to (a)   (relax) and get some rest at the weekend.

       1    The new company is going to bring a lot of (a)   (employ) to our town.

       1    Walking fifty kilometres across the desert is a real (a)   . (accomplish)

       1    It was a great (a)   (achieve) to beat the other runners in that race.