A. own B. do shopping C. mass D. cocaine A. piece B. accidentally C. find out D. atmosphere A. burrow B. automatic C. command D. garbage A. discern B. sportsperson C. twin D. cut down A. teach B. vinegar C. banal D. urgent A. hammer B. don't C. complain D. immigration A. mountain B. evidence C. dog D. hasn't A. traditionally B. introduction C. campaign D. cargo A. put B. dioxide C. busman D. longitude A. coastal B. have a picnic C. punctuality D. chorus