单选题 I ______ these books for three years.
A. bought B. have bought C. have had

【正确答案】 C
【答案解析】[解析] 现在完成时。由句子后面的for three years可知本句时态应用完成时,又由于动词buy是非持续性动词,不能用于完成时态中,所以要转化为have had的形式。