A. insurance B. part C. by oneself D. hive A. free B. drunk C. tide D. ecosystem A. dagger B. frightening C. keep D. argue A. Ms. B. senior C. helpless D. DNA A. volcanologist B. harry C. useful D. be known for A. support B. balcony C. cheekbone D. proposition A. on time B. surgery C. western-style D. square A. taste B. in the flesh C. noisily D. boulder A. attack B. main C. desperate D. nationwide A. list B. culture C. subscribe to D. absolute