What to do:
- Open the Google Form in Edit Mode
- Click the 3 dot menu and select Get pre-filled link
- Fill out the fields in the form opened with sample data
- Click on Get Link button at the bottom
- Click on the COPY LINK words in the popup
- Paste what you have copied into a text editor
You should then see all the "entry" markers with the numbers for each, and your sample entries
Take it from there 