Powershell script to bulk add AD accounts, mailboxes, password and security groups

Hi urgent query looking to get this done

Found below script at http://www.morgantechspace.com/2014/04/Create-Bulk-AD-Users-from-CSV-using-Powershell-Script.html

Have a test csv attached, I want to add exchange mailboxes and also 3 more security groups "Test members" "Test 2017" and "Test Wifi" what is the best way to do this?

Would it be just Add-ADgroup member "Domain Admins" "Test members" Test 2017" Test Wifi" $_."samAccountName";

Import-Module ActiveDirectory
Import-Csv "C:\Scripts\NewUsers.csv" | ForEach-Object {
 $userPrincinpal = $_."samAccountName" + "@TestDomain.Local"
New-ADUser -Name $_.Name `
 -Path $_."ParentOU" `
 -SamAccountName  $_."samAccountName" `
 -UserPrincipalName  $userPrincinpal `
 -AccountPassword (ConvertTo-SecureString "MyPassword123" -AsPlainText -Force) `
 -ChangePasswordAtLogon $true  `
 -Enabled $true `
 -EmailAddress $_."EmailAddress"
Add-ADGroupMember "Domain Admins" $_."samAccountName";
}
Test.csv