Hi frnds can you help me out...!
below i write test class but it gives only 70% how to increase more than 75%
code in "bold" is not include in code coverage
==================controller==================
public with sharing class multipleRecordsOnOpportunity {
    Public List<string> leftselected{get;set;}
    public List<String> selectedMarketsList {get; set;}
    Public List<string> rightselected{get;set;}
    public list<selectoption> getPickLstValue(){return null;}
    public Set<String> originalvalues = new Set<String>{'A','B','C','D','E','F','G','H','I'};
    public set<string> leftvalues = new set<string>();
    public set<string> rightvalues = new set<string>();
    public account acc{set;get;}
    public opportunity opp {set;get;}
    public boolean flag{set;get;}
    public list<opportunity> oppsToCreateList{set;get;}
    // constructor  
    public multipleRecordsOnOpportunity(ApexPages.StandardController controller) {
          opp= new opportunity();
          leftselected = new List<String>();
          rightselected = new List<String>();
          leftvalues.addall(originalvalues );
          selectedMarketsList= new list<string>();
          oppsToCreateList=new list<Opportunity>();
          rightselected = new List<String>();
          string str=ApexPages.CurrentPage().getParameters().get('id');
          system.debug('99999999999999999999999999999'+str);
          try{
             acc=[select id,name,CustomerPriority__c from account where id=:str limit 1];
             if(acc.CustomerPriority__c=='High'|| acc.CustomerPriority__c=='Medium'){
                flag=true;
             }
             else{
                 ApexPages.Message myMsg = new ApexPages.Message(ApexPages.Severity.ERROR,'Multiple Opportunities can only be created from High and medium from parent account.');
                ApexPages.addMessage(myMsg);
             }
          }
          catch(Exception e){
            ApexPages.addMessages(e);
          }
    }
     
     
    // after click on add buttone display vlaues in Right side panel
    public List<SelectOption> getSelectedValues(){

        List<SelectOption> options1 = new List<SelectOption>();

        List<string> tempList = new List<String>();

        tempList.addAll(rightvalues);

        tempList.sort();

        for(String s : tempList)

            options1.add(new SelectOption(s,s));
            system.debug('1111111111111111111111'+options1);

        return options1;

    }
    
    // by defult left side values or after click on remove values in left panel
    public List<SelectOption> getunselectedvalues(){
           List<SelectOption> options = new List<SelectOption>();
           /*Schema.DescribeFieldResult fieldResult = opportunity.opportunity_multi__c.getDescribe();
           List<Schema.PicklistEntry> ple = fieldResult.getPicklistValues();
           for(Schema.PicklistEntry f : ple){
              if(f.getValue() != 'A' && f.getValue() != 'b' ){
                     options.add(new SelectOption(f.getLabel(), f.getValue()));
              }
          }*/


        List<string> tempList = new List<String>();

        tempList.addAll(leftvalues);

        tempList.sort();

        for(string s : tempList)

            options.add(new SelectOption(s,s));
            system.debug('00000000000000000000000000000'+options);
       
          return options;           
   }
   // aaction function of add button add values in right side
   public PageReference selectclick(){

        rightselected.clear();

        for(String s : leftselected){

            leftvalues.remove(s);

            rightvalues.add(s);

        }
        system.debug('22222222222222222222222'+leftvalues);
        system.debug('33333333333333333333333'+rightvalues);

        return null;

    }
    // after click on Remove button display vlaues in panel
    public PageReference unselectclick(){

        leftselected.clear();

        for(String s : rightselected){

            rightvalues.remove(s);

            leftvalues.add(s);

        }
        system.debug('4444444444444444444444444'+leftvalues);
        system.debug('5555555555555555555555555'+rightvalues);


        return null;

    }
    // clone Records Based number of markets selecting(Ex:selecting c,d,e clones 3 records)
   public PageReference updateMarkets(){
        oppsToCreateList.clear();
        selectedMarketsList.clear();
        selectedMarketsList.addall(rightvalues);
        system.debug('000000000000000000000'+rightvalues+selectedMarketsList);
        for (Integer i=0; i<selectedMarketsList.size(); i++){
            String themkt = selectedMarketsList.get(i);
            
            boolean alreadyAdded = false;
            //## see if the Market is already in the oppsToCreateList
            for (Opportunity tmpopp : oppsToCreateList)
            {
                if (themkt == tmpopp.opportunity_multi__c)
                {
                    alreadyAdded = true;
                }   
            }
            
            if (themkt == opp.opportunity_multi__c || alreadyAdded)
            {
                //## don't re-add the original opp to the list, and don't
                //## add the same record to the list multiple times.
            }
            else
            {
                Opportunity newopp = opp.clone(false);
                Newopp.OrderNumber__c = themkt;
                newopp.accountid=acc.id;
                newopp.ownerId=UserInfo.getUserId();
                newopp.stagename='1 - Prospect Evaluation';
                newopp.closedate=date.today();
                newopp.Name =acc.name;
                oppsToCreateList.add(newopp);
   
            }
            
        }
        
      system.debug('1111111111111111111111111111111111111'+oppsToCreateList);
     return null;
       
   }
   public PageReference  SaveRecords(){
      if (oppsToCreateList != null && oppsToCreateList.size() > 0)
        {
            try
            {       
                insert oppsToCreateList;
            }
            catch (Exception e)
            {
                ApexPages.addMessages(e);
                return null;        
            }
        }
      return new PageReference('/'+acc.Id);
   }

}

==============Test class=============================================
@isTest()
public class TestmultipleRecordsOnOpportunity{
   static testMethod void myUnitTest_creat_multiple_Opportunity()
    {
     // This method for successful adding Multiple OpportunityRecords to Account
      Account a1 = new Account();
      a1.Name = 'testa1';
      a1.CustomerPriority__c ='mp';
      insert a1;// Creating Mock Data For Account
      Opportunity o1 = new Opportunity();
      o1.Name = 'testo1prodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprod';
      o1.AccountId = a1.Id;
      o1.StageName = 'test';
      o1.CloseDate = Date.today();
      o1.Amount = 100000000;
      insert o1;// Creating Mock Date For Opportunity
      Test.startTest();
        PageReference pageRef = new PageReference('/apex/multipleRecordsOnOpportunity?id='+a1.Id);
        Test.setCurrentPageReference(pageRef);
        
        //Adding visualforce page multipleRecordsOnOpportunity  To Testclass
        ApexPages.StandardController sc =new ApexPages.StandardController(a1);// Initializing Standard Controller
        multipleRecordsOnOpportunity  myPageCon =new multipleRecordsOnOpportunity (sc);// Adding Extension to Standard controller
        List<SelectOption> testoptions1=myPageCon.getunselectedvalues();
        myPagecon.selectclick();
        list<SelectOption> testoptions=myPageCon.getSelectedValues();
        mypagecon.unselectclick();
        List<SelectOption> testoptions11=myPageCon.getunselectedvalues();
        myPagecon.selectclick();
        list<SelectOption> testoptionss=myPageCon.getSelectedValues();
        list<String> originalvalues = new list<String>{'A','B','C'};
        myPageCon.updateMarkets();// calling method updateMarkets
        myPageCon.selectedMarketsList=originalvalues ;
        myPageCon.updateMarkets();// calling method updateMarkets checking loop conditons
        myPageCon.SaveRecords();// calling method newRecordsInsertMethod
      Test.stopTest();
      
    }
      static testMethod void myUnitTest_creat_multiple_Opportunity1()
    {
     // This method for successful adding Multiple OpportunityRecords to Account
      Account a1 = new Account();
      a1.Name = 'testa1';
      a1.CustomerPriority__c='medium';
      insert a1;// Creating Mock Data For Account
      Opportunity o1 = new Opportunity();
      o1.Name = 'testo1prodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprodprod';
      o1.AccountId = a1.Id;
      o1.StageName = 'test';
      o1.CloseDate = Date.today();
      o1.Amount = 100000000;
      insert o1;// Creating Mock Date For Opportunity
      Test.startTest();
        PageReference pageRef = new PageReference('/apex/multipleRecordsOnOpportunity ?id='+a1.Id);
        Test.setCurrentPageReference(pageRef);
        //Adding visualforce page multipleRecordsOnOpportunity  To Testclass
        ApexPages.StandardController sc =new ApexPages.StandardController(a1);// Initializing Standard Controller
        multipleRecordsOnOpportunity  myPageCon =new multipleRecordsOnOpportunity (sc);// Adding Extension to Standard controller
       list<SelectOption> testoptions=myPageCon.getSelectedValues();
        List<SelectOption> testoptions1=myPageCon.getunselectedvalues();
        myPagecon.selectclick();
        mypagecon.unselectclick();
        list<String> originalvalues = new list<String>{'A','B','C','D','E','F','G','H','I'};
        myPageCon.updateMarkets();// calling method updateMarkets
        myPageCon.selectedMarketsList=originalvalues ;
        myPageCon.updateMarkets();// calling method updateMarkets checking loop conditons
        myPageCon.SaveRecords();// calling method newRecordsInsertMethod
      Test.stopTest();
      
    }
   static testMethod void myUnitTest_MassCloneFail()
    {
         
        Account a1 = new Account();
        a1.Name = 'testa1';
        a1.CustomerPriority__c='High';
        insert a1;
        
        Opportunity o1 = new Opportunity();
        o1.Name = 'testo1';
        o1.AccountId = a1.Id;
        o1.StageName = 'test';
        o1.CloseDate = Date.today();
        o1.Amount = 100;
        
        insert o1;
        
        Test.startTest();
        
        PageReference pageRef = new PageReference('/apex/multipleRecordsOnOpportunity ?id='+a1.Id);
        Test.setCurrentPageReference(pageRef);
        // create an instance of the controller
        ApexPages.StandardController sc =
                new ApexPages.StandardController(o1);
        multipleRecordsOnOpportunity  myPageCon = new multipleRecordsOnOpportunity (sc);
        list<SelectOption> testoptions=myPageCon.getSelectedValues();
        List<SelectOption> testoptions1=myPageCon.getunselectedvalues();
        myPagecon.selectclick();
        mypagecon.unselectclick();
        list<String> originalvalues = new list<String>{'A','B','C','D','E','F','G','H','I'};
        myPageCon.selectedMarketsList =originalvalues ;
        myPageCon.updateMarkets();
        
        myPageCon.opp.Name = '';
        myPageCon.SaveRecords();
        
        myPageCon.opp.Name = '';
        myPageCon.SaveRecords();
        
               
        Test.stopTest();
        
    }   
    static testMethod void myUnitTest_MassCloneFail1()
    {
         
        Account a1 = new Account();
        a1.Name = 'testa1';
        a1.CustomerPriority__c='low';
        insert a1;
        
        Opportunity o1 = new Opportunity();
        o1.Name = 'testo1';
        o1.AccountId = a1.Id;
        o1.StageName = 'test';
        o1.CloseDate = Date.today();
        o1.Amount = 100;
        
        insert o1;
        
        Test.startTest();
        
        PageReference pageRef = new PageReference('/apex/multipleRecordsOnOpportunity ?id='+null);
        Test.setCurrentPageReference(pageRef);
        // create an instance of the controller
        ApexPages.StandardController sc =
                new ApexPages.StandardController(o1);
        multipleRecordsOnOpportunity  myPageCon = new multipleRecordsOnOpportunity (sc);
       //myPageCon.selectedMarketsList= 'UK;France';
        list<SelectOption> testoptions=myPageCon.getSelectedValues();
        List<SelectOption> testoptions1=myPageCon.getunselectedvalues();
        myPagecon.selectclick();
        mypagecon.unselectclick();
        myPageCon.opp.Name = '';
        myPageCon.SaveRecords();
        
        myPageCon.opp.Name = '';
        myPageCon.SaveRecords();
        
               
        Test.stopTest();
        
    }   

}