王老师:19139051760(拨打)复制微信 题目 更新时间:2023/4/3 7. His explanation was too difficult to understand and the children all became _____.A. confused B. confuse C. confusing D. to confuse 答案 登录 注册 A 出自:青书学堂 >> 河北建筑工程学院-建筑工程技术(专科)-大学英语1 河北建筑工程学院继续教育学院