10. Someone   built a new house for the orphanage->.............A new house was built for the orphanage.........................................
11.    Do people speak Spanish in Brazil?->.............................Is Spanish spoken in Brazil?................................................................
12.Does your child eat that cake?->......................................Is that cake eaten by your child?................................................................
12.    Did  Lan do her exercises  yesterday?->...................Were Lan's exercises done yesterday?...............................................................................
13.    Did  you invite her to your birthday party?->...........Was she invited to your birthday party?......................................................................
14.    they have cleaned the floor 
->.......The floor has been cleaned.........................................................................................
15.    Have you sold your house yet?->..........Has your house sold yet?..........................................................................................
16.    you did your test this morning
>...................Your test was done this morning................................................................................
17.    Did they paint the windows yesterday?->..................Were the windows painted yesterday?.....................................................................
18.     They have  cooked  the meal 
        ->........The meal has been cooked....................................................