Open the brackets using Past Perfect I (to finish) my homework by seven o’clock.
By two o’clock the teacher (correct) all mistakes in the pupils’ copybooks.
When I (to come) home, mother already (cook) dinner.
When father (come) home, we already (do) our homework.
When the teacher (to enter) the classroom, the pupils already (to open) their books.
By nine o’clock yesterday grandmother (to wash) the dishes.