Write passive sentences in Simple Present.

1. the documents / print 
   The documents are printed
2. the window / open 
   The window is opened
3. the shoes / buy 
   The shoes are bought
4. the car / wash 
   The car was washed
5. the litter / throw away
   The litter was thrown away 
6. the letter / send 
   The letter has been sent
7. the book / read / not
   The book hasn’t been read 
8. the songs / sing / not 
   The songs aren’t sung
9. the food / eat / not 
   The food isn’t eaten
10. the shop / close / not 
    The shop hadn’t been closed