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11. The last time Mei saw her parents was when she left for the USA.
12. It's the most beautiful girl I have ever seen.
13. Peter suggested that John should write to Carol.
14. It takes them an hour to watch the news on TV every night.
15. If Lisa weren't always mean with money, she would have many friends.
16. If you don't study harder, you will fail the exam.
17. Sarah asked Philip if he could remember where he put the camera.
18. Henry wishes he hadn't turned down his friend's proposal.
19. If he hurried, he wouldn't miss the plane.
20. I wish I had come to your birthday party last night.