`2.` Will you invite her to your wedding party ?
`⇒`will she be invited to your wedding party ?
`3.` Did the teacher give some exercise ?
`⇒`were some exercises given by the teacher?
`4.` Is she going to write a poem ?
`⇒`Is a poem going to be written?
`5.` Have they changed the window of the laboratory ?
`⇒`has the window of the laboratory been changed ?
`6.` Is she making big cake for the party ?
`⇒`Is a big cake being made for the party ?
`7.` Has Tom finished the work ?
`⇒`Has the work finished by Tom?
`8.` Are the police making inquires about the thief ?
`⇒`Are inquires about the thief being made by the police?
`9.` Must we finish the test before ten ?
`⇒`Must the test be finished before ten ?
`10.` Will buses bring the children home ?
`⇒`Will the children be brought home by buses?
2. Wh _ questions.
`11.` When will you do the work ?
`⇒`when will the work be done?
`12`. How many days did she spend finishing the work ?
`⇒`How many days were spent finishing the work ?
`13.` How do you spend this amount of money ?
`⇒`How is this amount of money spent?
`14.` What books are people reading this year ?
`⇒`What books are being read this year ?
`15.` How did the police find the lost man ?
`⇒`How was the lost man found by the police?
`16.` Who looked after the children for you ?
`⇒`By whom were the children looked after for you ?
`17.` How long have they waited for the doctor ?
`⇒`How long has the doctor been waited for?
`18`. What time can the boys hand in their paper ?
`⇒`What time can their paper be handed in by the boys?
`19`. Why didn't they help him ?
`⇒`why wasn't he helped?
`20.` Who are they keeping in the kitchen ?
`⇒`who is being kept in the kitchen?
