DU Admission Test KHA Unit Model Test Quiz and Solution Bangla 2013-14 Question 23 DU Admission Test KHA Unit Model Test Quiz and Solution Bangla 2013-14 Question 23 DU Admission Test KHA Unit Model Test Quiz and Solution Bangla 2013-14 Question 23 DU Admission Test KHA Unit Model Test Quiz and Solution Bangla 2013-14 Question 23