Use this spreadsheet Add-on to allow multiple people to collaboratively create multiple choice questions in a Google Sheets spreadsheet. Once the questions are designed, press a button in the sidebar to create a Google Form from the questions in the spreadsheet.
What a great add-on! I’ve mentioned before another way to collaborate on a Google Form, and that was to use a Google Doc to create the questions. But this add-on takes care of the drudgery of actually putting the form together.