A. concrete B. ride C. public D. blur A. corn B. socialist C. flexible D. childhood A. move away from B. cascade C. write D. Asian A. nitrogen B. breathe C. network D. keep up A. riverbank B. switch on C. afflict D. calcium A. radiation B. went fishing C. financial D. include A. wheelchair B. secretary C. shout at D. Spain A. Merry Christmas B. salvage C. twitter D. somebody A. come into being B. universal C. kick D. advocate A. plate B. verbal C. toothache D. tonight