С! putt he sentences into passive voise.mind the tenses. 1)jill uses the computer quite often the comruter by jill quite often 2)the secretary defender some colleagues some colleagues by the secretary 3)picasso painted this picture this picture by picasso 4)last year they published ten books ten books (by them) last year 5)molly hasknitted this cardigan this cardigan by molly 6)next year george will visit marcin london next year marc by george in london 7)jim has opened the window the window by jim 8)lucy buys many books many books by lucy 9)david has written some letters some letters by some 10)benjamin franclin invented lightning conductor the lightning conductor by benjamin franclin 11)all studentshave learned irregularverbs the irregular verbs by all students.
2) Some colleagues are defended by the secretary.
3) This picture was painted by Picasso.
4) Ten books were published by them last year.
5) This cardigan has been knitted by Molly.
6) Next year Marc will be visited by George in London.
7) The window has been opened by Jim.
8) Many books are bought by Lucy.
9) Some letters have been written by David.
10) The lightning conductor was invented by Benjamin Franclin.
11) The irregular verbs have been learnt by all students.