完形填空
【2014·江西省高中毕业班新课程教学质量检测卷】
Maurice，who lives in a country in Africa，is only 13，but since he lost his parents to AIDS he has had to look after his 9yearold brother and 8yearold sister.“ The__1__problem we have without our parents is__2__food，” he says.Without parents or guardians，Maurice had to drop out of school to earn a__3__，carrying food for merchants so he and his brother and sister could have__4__to eat.
