A. mental B. airplane C. attend D. hover A. alibi B. suspend C. exchange D. subject A. mend B. draft C. paper D. go for A. lend B. material C. bring out D. sportsman A. kg B. social worker C. defend D. mother tongue A. model B. depend C. absent D. canyon A. sounding B. adopt C. tend D. proposition A. friend B. car C. cocaine D. worry about A. cheque B. keeper C. dam D. trend A. equal B. excavation C. bend D. nobody