1. Business people are involved in the management of companies.
2. My father builds bridges.
3. Every year they spend a couple of months at the seaside
.
4. In our orchard we grow potatoes and tomatoes.)
5. This museum exhibits the 18th-century organs, pianos (or piani) and grand pianos (or grand piani).
6. Why do financial crises happen?
7. I want to read Shakespeare's plays, both tragedies and comedies.
8. Roofs (or rooves) 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 phenomena.