2009 天津 第 4 题 单选题 区分题 2009_天津卷 (英语) 4. (1分)______ the project in time,the staff were working at weekends. ( ) A. CompetingB. Having completedC. To have completedD. To complete 参考答案D ☆ 收藏不会,直接看解析查看原卷 →