A. considerate B. often C. stand D. facial A. campaign B. mainstream C. lonely D. incur A. specialize B. chick C. waitress D. call in A. by chance B. dealer C. feed on D. ID number A. succeed B. conceive C. come across D. where A. marker B. modest C. out D. industrial A. crowd in B. fitness C. astonished D. slaughter A. how old B. project C. crash D. alphabet A. silt B. introduction C. career D. an A. crowd B. became C. February D. clog