第28题: [单项选择]{{U}}Because our work is very busy{{/U}}, so we need to relax at midday. A. We are very busy B. Our work being busy C. Our work so very busy D. Because our work so very busy, 参考答案:B 答案解析:[分析] 结构应用
本句考察的是独立结构:划线部分在句中作状语,但状语的逻辑主语与主句的主语不一致,因此用独立结构作状语,因此B为答案。