Помогите, пожалуйста! По британскому вновь куча заданий, а у меня есть

1business people are involved in the management of companies.
2my father builds bridges.
3every year they spend a couple of monthes at the seaside.
4In our orchard we grow potatoes and tomatoes.
6Why do financial crisises happen.
7I want to read Shakespeare's plays,both tragedies and comedies.
8Roofs on houses vary in geometry,method of ventilation and covering material.
9 There are computer discs in those boxes.
10 At the Geography lessons we study nature phenomenons.