Read the following passage. Decide if the statements from 15 to 20 are True or False, and choose the correct answers (A, B, C or D) for the questions 19 and 20: (1.5pts) For centuries, poets, writers and musicians have mentioned the ao dai in poems, novels and songs. The ao dai is the traditional dress of Vietnamese women. It consists of a long silk tunic that is slit on the sides and worn over loose pants. Traditionally, it was frequently worn by both men and women. The design and material used for men were different from those used for women. Nowadays, women usually wear it, especially on special occasions. However, many Vietnamese women today often prefer to wear modern clothing at work, because it is more convenient. Now fashion designers want to change the traditional ao dai. Some have printed lines of poetry on the ao dai, so they look modern and very fashionable. Other designers have taken inspiration from Vietnam’s ethnic minorities. They have visited villages and studied traditional designs and symbols such as suns, stars, crosses, and stripes. They have added these patterns to the ao dai, so Vietnamese women can continue to wear the unique dress, which is now both traditional and fashionable. 15. The ao dai has been the subject of poems, novels and songs for a long time. 16. It is described as a long silk tunic that is slit on the sides and worn over loose pants. 17. Only women used to wear the ao dai by tradition. 18. The majority of Vietnamese women prefer to wear modern clothing at work. 19. The word “those” in line 4 refers to ____. A. design B. material C. design and material D. men and women 20. Another alternative is to add ______. A. pictures of birds, flowers and trees B. pictures of mountains and rivers C. symbols such as suns, stars, crosses, and stripes D. symbols such as earths and forests