How to make a sentence passive?
How to form a passive sentence
Firstly, you need to make the object (from the active sentence) into the new subject. For example, in “John helped me”, “me” is the object. ...
Then you make the verb passive. ...
Then add the past participle of the verb. ...
If necessary, you can say who did the action.
Объяснение:
2) can be used 3) have already been sent 4) is written 5) should be done
