单选题 How she wishes she ______ more attention to her lessons when she was at school!
A．have paid B．paid
C．had paid D．has paid

【正确答案】 C

【答案解析】[解析] 本题考查虚拟语气的用法。wish后面的宾语从句，用动词的过去时表示与现在的事实相反；用had加过去分词，表示与过去事实相反。本句中when she was at school是过去的时间，故选C。