Complete by changing the form of the verb in brackets into the Past…

Complete by changing the form of the verb in brackets into the Past Perfect. 1.Tania … (not/finish) doing housework by five o`clock,so she called Nadiato tell her she would be late. 2.She didn`t eat anything at the party because … (she/already/eat) at home. 3.He … (just/finish) his homework when the teacher came in. 4.By the time I arrived,the play … (start)! Помогите плиз