Apex Class:
public with sharing class previewController {
    public List<Survey__c> surveyList {get; set;}
    public List<SurveyQuestion__c> quesList {get; set;}
    public List<Sections__c> sectionsList {get;set;}
    public Id suvrecordId {get; set;}
    public String[] sections {get; set;}
    
    ApexPages.StandardController sc;
    
    public PEPESurveyPreview(ApexPages.StandardController sc) {
        this.sc = sc; 
        
        suvrecordId = ApexPages.currentPage().getParameters().get('suvrecordId');
        System.debug('--- SurveyId: ---' + suvrecordId);
        
        surveyList = [SELECT Id, Name, SurveyName__c, Description__c FROM Survey__c WHERE Id =:suvrecordId];
        System.debug('--- Suv: ---' + surveyList);
        
        quesList = [SELECT Id, SurveyQuestion__c, Ratings__c, Comments__c, Required__c, 
                    	   Survey__c, SectionName__c
                      FROM SurveyQuestion__c
                      WHERE Survey__c =:suvrecordId
                      ORDER BY SectionName__c asc];
        
        System.debug('--- Ques: ---' + quesList);

        sectionsList = [SELECT SectionName__c, Survey__c, Name
                         FROM Sections__c
                      	 WHERE Id =:suvrecordId];
    	
        Set<String> sectionSet = new Set<String>();
        
        for(SurveyQuestion__c sq : quesList) {
            sectionSet.add(sq.SectionName__c);
        }
        
        sections = new String[sectionSet.size()];
        Integer i = 0;
        for(String section : sectionSet) {
            sections[i] = section;
            i++;
        }        
    }   
}

VF Page:
<apex:page standardController="Survey__c" extensions="Preview" >
    <apex:form >
        <div class="center" />
        
        <h1 class="center"> Preview </h1>

        <div class="box">                    
            
           <!-- Survey Questions -->
            <div style="margin-left:75px; margin-right:75px">                
                <table class="table1" width="100%" cellspacing="0" >
                    <apex:repeat value="{!sections}" var="section">
                        <apex:repeat value="{!quesList}" var="suq">
                            <tr>
                                <th> {!section} </th>                                
                            </tr>                            
                        </apex:repeat>
                    </apex:repeat>
                </table>
            </div> <br/>
            
            <!-- Submit Button with NO ACTION -->
            <div style=" height: 40px; text-align: center; margin-top:10px">
                <apex:commandlink style="text-decoration:none;padding:12px;font-size: 25px; margin-left: -20px; background-color: #00bceb;border-radius: 20px;" value=" Submit "/>
            </div> <br/>
        </div>
    </apex:form>
</apex:page>