Google Script Code

function onEdit(e) {
  
  // Insert the ID of both the Sheet and the Form
var ss = SpreadsheetApp.openById('xxxxxxxxxxxxxx');
var form = FormApp.openById('xxxxxxxxxxxxxxx');

  
  // You must set to the Form to be a Quiz if it was not set up as a quiz initially, can turn this off after running once if you want
  form.setIsQuiz(true);

// For this purpose it is easiest to create the form first rather than creating the items here. Here you will just update the questions appearing in the Form/Quiz.
// Be sure to set an answer for each item, and a point value. In this case, 5 with the correct answer of True and 5 with False .
  
  // First we get the items from the Form and set them as variables. 
  // Since I have  3 items and 3 sections headers before the quiz for name and such, and these are not getting updated, we skip to 6th item in the list
 
var items=form.getItems();

  var quiz_item1 = items[5];  //correct answer is true   you can't update response options, but the questions are shuffled in form
    var quiz_item2 = items[6];  //correct answer is true
    var quiz_item3 = items[7];  //correct answer is true
    var quiz_item4 = items[8];  //correct answer is true
    var quiz_item5 = items[9];  //correct answer is true
  
    var quiz_item6 = items[10];  //correct answer is false
    var quiz_item7 = items[11];  //correct answer is false
    var quiz_item8 = items[12];  //correct answer is false
    var quiz_item9 = items[13];  //correct answer is false
    var quiz_item10 = items[14];  //correct answer is false
  

  // here we pull the questions from the Sheet. They are grouped on the sheet by those with the answer True, and those with False. 
  // This is required since Google only lets you update the questions, not the responses. On the Form, the first 5 items are True, the next 5 are False -- they get shuffled by the Form however.
  // So we will take 5 random from the block of True, and 5 random from the block of False. To set up the Google Sheet, check out this video -- https://www.youtube.com/watch?v=dwLMI8wP3U4
  
  
      var sheet_plag = ss.getSheetByName('Random_questions');
    var true_range = sheet_plag.getRange('B1:B5')
      var false_range = sheet_plag.getRange('B6:B10')
  var true_questions = true_range.getValues()
    var false_questions = false_range.getValues()
 
  // they are grouped to give us 5 true and 5 false items. They get shuffled in the form settings.
  // here we are setting the title -- i.e., the question -- with the randomized question from the Sheet.
  // the response options (T/F) and the correct answer will be the same for each of these, so we only change the question
  
   quiz_item1.setTitle(true_questions[0]); 
   quiz_item2.setTitle(true_questions[1]); 
   quiz_item3.setTitle(true_questions[2]); 
   quiz_item4.setTitle(true_questions[3]); 
   quiz_item5.setTitle(true_questions[4]); 
  
   quiz_item6.setTitle(false_questions[0]); 
   quiz_item7.setTitle(false_questions[1]); 
   quiz_item8.setTitle(false_questions[2]); 
   quiz_item9.setTitle(false_questions[3]); 
   quiz_item10.setTitle(false_questions[4]); 

  
  // You could do the same for multiple choice. You just have to group them based on the correct answer. 
  // So all the questions with A as the correct response would be grouped and then some questions are randomly selected from the block of questions.
  // You can't update the options, so the options have to be in the question -- e.g., The third planet from the Sun is #A Mars, #B Earth, #C Venus
  
 // In the Form you can set up if you want people to see which they got right or wrong. 
 // In the Sheet you will see their score, but since the questions change each time you won't be able to see the items that they got correct or wrong. But they will have a record of it.
    
        

        }