Дополните диалог. 
mother : how was your day?
you: ...
mother : what grades have you got?
you: ...
mother : have you had dinner?
you: ... ( negative answer)
mother : have you taken the rubbish away?
you: ... ( negative answer with some excuse)
mother :have you washed up yet?
you: ... ( negative answer with some excuse)
mother : what have you been doing then?
you: ...