Complete sentenses 1-6 with the words below. blackmailers; burglars; kidnappers; muggers; serial killers; shoplifters. when l was a little kid, lused to believe that. 1) __ were very strong people who picked up shops. people who stole burgers. were people who hit you on the head with a mug. people who sent black envelopes to people. murderers who put poison in breakfast cereals. were people who would catch kids and force them to take a nap.