Помоги срочно!! Нужно переделать эти предложения!! Тема:Reported speech

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I knew those figures couldn't be rightShe thought her cat understood everything she saidThe professor said Shakespeare hadn't spoken FrenchI knew dinosaurs had been around  for 250 million yearsIt said on this TV programme three thousands years before there had been tigers in EnglandI asked what the boss wantedGrandmother asked Mary what mark she had got at school?