Read the following passage carefully and answer the questions that follow :
Teaching is the noblest of profession. A teacher has a sacred duty to perform. It is he on whom rests the responsibility of moulding the character of young children. Apart from developing their intellect, he can inculcate in them qualities of good citizenship, remaining neat and clean, talking decently and sitting properly. These virtues are not easy to he imbibed. Only he who himself leads a life of simplicity, purity and rigid discipline can successfully cultivate these habits in his pupils. Besides a teacher always remain young. He may grow old in age, but not inspite. Perpetual contact with budding youths keep him happy and cheerful. There are moments when domestic worries weight heavily on his mind. but the delightful company of innocent and children makes hiM overcome his transient moods of despair.
(i) What kind of duty a teacher have to perform?
(ii) What kind of responsibility rest on him?
(iii) What keeps a teacher happy and cheerful?
(iv) What is the opposite of the words 'rigid'?
(v) What is the verb form of 'delightful'?