III:
9: The road leading to the city centre is being repaired (by them)
10: My phone calls are being listened to by somebody
IV:
1: I have been asked that question by no one before
2: Plans for an extension to the house have been drawn by the architect
3: -We have been taught the passive voice by our teacher of E.
-The passive voice has been taught us by our teacher of E.
4: Much hasn't been done (by them)
5: These sentences have been written (by me) in different ways