单选题 —How can I clean my coat?
—You ought to have your coat______.

【正确答案】 B
【答案解析】[解题指要] 该题测试have something done的用法。这一结构表示“完成某些事”或“让别人完成某事”。如:I had my watch mended. I must have my hair cut.完成某事”。如:I had my watch mended. I must have my hair cut.