Răspuns :
Răspuns:
1. The cause of this strange disease is not known. - (nu este cunoscută), nu avem nevoie de "been".
2. I think the film must have been shot in Ireland. - propoziția este corectă.
3. The idea is that money will make you happier and more successful. - [happier(mai fericit)- the happiest(cel mai fericit)], nu avem nevoie de "the".
4. She goes to the cinema twice as often as most people I know. - (avem expresia "twice as often as"), nu avem nevoie de "more".
5. The film got very good reviews that it became a great success. - (dacă folosim "such", înseamnă că vorbim despre singular "It's such a very good film", dar noi avem "reviews"), nu avem nevoie de "such".