----- Nội dung dịch tự động từ ảnh ----- 12. I last saw him when I was a student. I haven't 13. A child was swimming across the Saigon River. I saw ______________ 14. The workers working in America factories learnt English in 6 months. It ______________ 15. I'm sorry I missed your birthday yesterday. I wish ______________ 16. They arrived late because the traffic was terrible. Because of ______________ 17. The students continued to talk about the party. The students kept ______________ 18. I can't swim as well as Tom. Tom ______________ 19. The old man is expecting with pleasure the visit of his grandchildren. The old man is looking forward ______________ 20. It is a six-hour drive from London to Edinburgh. It takes ______________