SORU: konuşmanın boş bırakılan bölümünde söylenmiş olabilecek sözü bulunuz
Amy: - I suppose Parkinson's is on the increase because people are living so much longer. David: - It's not as simple as that. Fifty per cent of patients acquire it before they are sixty. Amy: - ---- David: - No, it's not. Environmental factors seem to play quite an important role.