A. waterlogged B. develop C. spoken D. on earth A. brother B. contaminate C. craftsman D. prevent from A. bye-bye B. native C. cut down D. position A. saleswoman B. perfect C. hood D. Mars A. turn off B. sleeping bag C. nowadays D. churn A. digestive B. ran C. die out D. paradox A. escape B. hive C. humanity D. OK A. painter B. place C. judge D. change into A. oxygen B. laser C. pocket D. carrier A. explode B. be bad for C. carbon dioxide D. zipper