[Grammar] All I needed to do is Ving/to V/V

[sitifan]

1. All I needed to do was pressing the button when these works came passing by my station. (English Grammar, by Yentzu, page 204)
2. All I needed to do was to press the button when these works came passing by my station. (written by me)
3. All I needed to do was press the button when these works came passing by my station. (written by me)

Which of the above sentences is not acceptable to native speakers?

 

[emsr2d2]

None of them makes any sense. I have no idea what "when these works came passing by my station" is supposed to mean but it's unintelligible. In terms of the bold parts, #1 is incorrect.

 

[teechar]

1. All I needed to do was pressing the button when these works came passing by my station. (English Grammar, by Yentzu, page 204)

If that was written as a correct sentence in it, then that book is a strong candidate for the bin.