Read and choose the right word. sweden's 'abba' were the most ( ( band of the 70s. they won the eurovision ( contest in 1974. they had eighteen uk ( 10 hits. the secret of their success was ( songs and ( voices. their ( hits include 'waterloo','dancing queen','( new year', and 'fernando'. предложенные слова : successful, young, pop, opera, ballet, song, best, top, melodic, relaxed, calm, beautiful, modern, greatest, happy, marry