English - Advanced Grammar - Active and passive voice - Who Does What?

2 boxes: ACTIVE VOICE (subject DOES the action) and PASSIVE VOICE (subject RECEIVES the action). 14 sentences to sort: ACTIVE: 'The cat chased the mouse.' 'She wrote the letter.' 'Tom built the house.' 'The teacher graded the tests.' 'We planted the trees.' 'The dog bit the mailman.' 'Scientists dis