Раскройте скобки, употребляя глаголы present simple passive

1)      раскройте скобки, употребляя глаголы в present simple passive. 1. the postbox  is emptied  every day. 2. the stamps  are postmarked  at the post office. 3. the letters  are sorted  into the different towns. 4. the mail is loaded  into the train. 5. the mailbags  are unloaded  after their journey. 6. the bags  are taken  to the post office. 7. the letters  are sorted  into the different streets. 8. the letters  are delivered.