Solution

The ( prepare) for our trip were quick because we only planned to stay for two nights.

He is famous for his (accomplish) as a mountain climber.

Firefighters (risk) their lives every day to save people and buildings.

The ( complete) of the new stadium will be next September.

I don't know what the ( argue) was about, but they're friends again now.

I'm not sure what her ( motivate) is, but she really wants to succeed.

She ( need) to go running every day to prepare for the race.

Cars and lorries (thunder) overthe bridge all day .

The books he wrote about famous mountain climbers are his greatest ( achieve)

It's wonderful to ( experience) life in another country - you can learn so much about the world.