Pourrais-je avoir de l’aide en anglais s’il vous plaît mettre à la voix passif et envoyer le comparatif et les superlatifs

a- A Rolls Royce is more expensive than a Mini

b- some people say that the train is the most safe means of communication

c- She loves office work, in her opinion, it is much more tiring manual work

d- in general, French people are not more reserved than English people

e- I prefer Paul, he is more intelligent than John