A. seashell B. administer C. on one's own D. queen A. upset B. unique C. enemy D. ear A. want B. style C. freestyle D. buoy A. safety B. headmistress C. presentation D. circle A. identity B. survival C. promptly D. for sale A. strata B. worried C. firefighter D. passive A. in amazement B. mount C. impolite D. night A. situation B. push C. blame D. strike A. Russian B. parliament C. clump D. audience A. arrive in B. pollution C. borrow D. assemble