2015 天津 第 8 题 单选题 区分题 2015_天津卷 (英语) 8. (1分)__________ for two days,Steve managed to finish his report on schedule. ( ) A. To workB. WorkedC. To be workingD. Having worked 参考答案D ☆ 收藏不会,直接看解析查看原卷 →