.In 1989 an international law was passed to stop people _____ waste into the sea.
8. The results of the examination _____ that you have all made great _____ .
7. No one but her parents _____ it.
6. The Olympic Games _____ held every _____ years.
5. About 40 _____ of the population of that country _____ on farms.
4. _____ can be done _____ been done.