現在完成式have+p.p例如:I have know Johnny for ten years 我已經認識強尼超過10年了過去完成式had +p.p例如:The car had already broken down before I bought it 這台車在我買之前就已經壞掉了
19. I _____ never been to Japan. I reall..-阿摩線上測驗