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2) (the sixties) (i>); the most famous pop group of the sixties was The Beatles - "" ;
3) ( 60- 69 i>); she is in the early sixties ; she is in the late sixties ; he is in his sixties ; he is in his mid sixties i> ;
4) ..i> 60-i> 70-i>; the temperature tomorrow will be in the high sixties i> 66-69 .