问题 更新时间2023/4/3 12:59:00 18. (单选题)The trainer usually gives the animal a piece of candy or fruit ( ).(本题1.0分) A、 before it plays a trick B、 when it is hungry C、 after it has done the trick D、 when it starts to play a trick 答案 登录 注册 标准答案:D 出自:青书学堂 >> 河南城建学院大学英语四