Exercise 1. Change the following sentences from Active into Passive. Leave out the doer of the action.
Model C: She will post the letter tomorrow.
The letter will be posted tomorrow.
1. They will allow the children to watch TV.
2. They will sign the treaty.
3. We shall invite our friends to the party.
4. They will publish this article in a day.
5. They will build the house in a month.