【摘要】Unit 6 Finding the Way 动词的时态和语态综合练习: 从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。 1. ——Oh, dear. I forgot the air tickets. ——You ______ something. A. have left B. are always leaving C. are leaving D. always left 2. —— I ______ so busily recently that I ______ no time to help you with your math. ——That’s OK. I can manage it by myself. A. have been working; have B. have worked; had C. am working; will have D. had