Употребите правильную форму глагола в пассивном закладе

1. The roads are covered with the snow .
2. Chocolate is made from cocoa .
3. The Pyramids were built in Egypt .
4. This coat was bought four years ago .
5. The stadium will be opened next month .
6. Your parents have been invited to a meeting 
7. It has been mended at the moment 
8. The books have already been packed .
9. The castle can be seen from a long distance 
10. The guests must be met at noon .