Question

英语临时抱佛脚１４，告之知识点谢谢

Answer 1

1.ought to have +v.(pp)表示应该做却没做 2.needn't have done 表示不需要做却做了 3.before the end of next month 是将来的事情 A. must have been completed 对过去事实的肯定推测 B. could have been completed 对过去事实的可能性的推测 C. must be c...