My father _____(sweep)the floor while my mother and I ______(clean)the windows

问题描述:

My father _____(sweep)the floor while my mother and I ______(clean)the windows

was sweeping were cleaning

My father __is sweeping___(sweep)the floor while my mother and I __are cleaning____(clean)the windows

is sweeping
are cleaning

is sweeping
are cleaning ( WHILE +进行时,主语是复数,‘MY MOTHER AND I’