Mixed tenses: complete sentences multiple choice jumbled sentences make questions to complete a dialogue complete sentences with all tenses complete a crime story ask questions about the crime story change active voice to passive voice 1 change active voice to passive voice 2 complete sentences with prepositions Direct and indirect object in passive sentences: correct mistakes Pdf exercises (worksheets): • Printable exercises with answers to download for free. • Free exercises to practise this form. • Positive, negative and question forms. • Practise passive forms of the future tense. • Exercises on the passive form of the present perfect.