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.
2) these books were sold everywhere last week. these books will be sold everywhere tomorrow
3) professor brown was asked a lot of questions after his lecture last week. professor brown will be asked a lot of questions after his lecture tomorrow
4) what questions were discussed during business talks last week? what questions will be discussed during business talks tomorrow?
5) passengers were taken to the plane a few minutes before it took off. passengers will be taken to the plane a few minutes before it will take off.
6) whose pictures were shown there? whose pictures will be shown there?
7) tickets for planes were booked in advance. tickets for planes will be booked in advance.