题目

完形填空 The passengers on the bus watched sympathetically(同情地) as the attractive young woman with thewhite cane(拐杖) made her way carefully up the steps. She paid the driver and, used her hands to1the location of the seats, walked down the aisle(过道) and found the seat he'd told her was2 . Then she settled in(坐下) ,placed her briefcase on her lap and3her cane against her leg.It had been a year since Susan, 34, became4 . Due to a medical misdiagnosis, she wassuddenly 5into a world of darkness, anger, frustration and self-pity. Mark, her husband, 6 her to work each day,下列不属于人口增长带来的问题的是（　　） A、交通堵塞B、居住条件差C、就业困难D、地震