HEEEELP!!!Срочно нужно сделать к/р! ПЛИЗЗЗ

Раcкройте скобки, употребляя глагол в правильной форме, и переведите полученные предложения.
1)The Brazilians ___ (export) the most coffee in the world.
2)Chocolate ___ (bring) to Europe by the explorer Cortes.
3)The hostages ___ (sit) in the plane without food or water since Wednesday.
4)Most people ___ only (interested) in bad news.
5)My parents ___ (not/travel) much when they ___ (be) young.
6)I promise. I ___ (do) my best to help you.
7)Nowadays supermarkets ___ (put off) small shopkeepers out of business.
8)The style of the exam ___ (not/change) since 1999.
9)When I went to Argentina I ___ never (fly) before.
10)What ___ (predict) by the Mayans?