My father______(keep)working for 8 hours,so he is very tired now

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Myfather______(keep)workingfor8hours,soheisverytirednowMyfather______(keep)workingfor8hours,soheisve

My father______(keep)working for 8 hours,so he is very tired now
My father______(keep)working for 8 hours,so he is very tired now

My father______(keep)working for 8 hours,so he is very tired now
填:has been keeping
用现在完成时,表示从过去延续到现在的动作

kept

has kept

has kept

has been keeping

has kept