While I(1)....the living room,my brother(2).... in the garden with his friends. 1)(1)was tidying;(2)was playing 2)(1)was cleaning;(2) was sitting 3)(1)cleaned;(2)played 4)(1)tidied ;(2)has played (может быть несколько вариантов ответа)
Первый вариант и второй