Ex :1 . His teeth are checked twive a year  -> He has his teeth checked twice a year  2 . Her skirt is being cleaned at the moment  ->  3 . My hair is trimmed once a month  ->  4. Central heating is going to be installed in our house next month  ->  5. Sam's burglar alarm was fitted last week  ->  6. The windows will be cleaned . ->   7. A new jumper has been knitted for me  ->  8. The lock has to be fixed -> 9 . A new  pair of glasses is going to be made for him  ->