1. he told them.......to leave him in peace (polite)
-> politely
2,The student didn t seem to have done much .......for the class.(prepare)
-> preparation
3. i worry about the ...... effect that violent films may have on children(destroy)
-> destructive
4. the report stresses the ,,,,,,,,,,,,,of eating plenty of fresh fruit and vegetables(necessary)
-> necessity
5. you re absolutely ......-can t you even go to the shops without getting lost (use)
-> useless