王老师:19139051760(拨打)复制微信 题目 更新时间:2023/8/19 -What did you do last night,Bob-First I did my homework,and theI played ______ piano for half ______ hour.·the;a·/;an·the;an·a;the 答案 登录 注册 单选题·the;an 出自:青书学堂 >> 华北水利水电大学英语 华北水利水电大学继续教育学院