用所给词的恰当形式填空:What( )you( )(do) l am ( )(write)to my( )(uncle)daughter

:What(are )you(doing )(do) l am (writing )(write)to my(uncle's )(uncle)daughter

What(are )you( doing)? l am ( writting)to my( uncle"s)daughter
writting要双写哎

What(are )you( doing)(do)
l am (writing )(write)to my(uncle's )(uncle)daughter
由于答句中的动词前有BE动词,所以应该是现在进行时