7. Sarah — to wash up for… — to break a few plates.

Длительное действие и результат: has been washing up и has broken.

Sarah has been washing up for … — she has broken a few plates.

Перевод: Сара моет посуду уже … — она разбила несколько тарелок.

Ответ: Sarah has been washing up for … — she has broken a few plates.