1)Those Who lead a Simple Life Are Happy.(Ans:The People Leading A Simple Life Are Happy)এখানে ing কেন যোগ করা হলো???2)Those Who Are Acquainted With Tolstoy Are Amazed At His Talent. (Ans: The Acquainted Persons With Tolstoy Are Amazed at his talent)এখানে কেন ing যোগ করা হলো না???