Paraphrase the sentences using the complex subject 1)we know mark twain to have been a very witty man. 2)it is believed that mild climate is very healthy. 3) it was announced that the italian singers were arriving the next month. 4) scientists consider that aids is an incurable disease. 5)i believe that thehouse where i live was built many years ago.

1) Mark Twain is known to have been a very witty man.
2) Mild climate is believed to be very healthy.
3) The Italian singers were announced to be arriving the next month.
4) AIDS is considered to be an incurable disease.
5) The house where I live is believed to have been built many years ago.