1. He is likely to let you down. （他可能会让你失望哟。） 

2. Our team is certain to win. （我们对肯定会赢。）

3. There appears to be no doubt about it.  （有的好像不是令人怀疑之处。）

4. John happened to be the only witness.  （约翰好像是唯一的证人。）

5. I chanced to be out of London at the time. 

6. John doesn't seem to be coming after all. 

7. We're not supposed to play football on Sundays. 

8. He is supposed to have arrived at five. 

9. He's sure to be there. 

10. They are certain to need help. 

11. I think it's going to rain this evening. 

12. How am I to pay my debts? 

13. The new building is going to be six storeys high. 

14. You're not to talk like that. 

15. He's likely to see her. 

16. You've got  to be joking. 

17. He tends to be stupid. 

18. I fail to see what you mean. 

19. We happened to be there. 

20. I chanced to meet him in the park. 

21. He appeared to enjoy the concert. 

22. They seemed not to notice it. 

23. The swimmer failed to reach the shore. 

24. We were to have been married in May. 

25. The purse was not to be found. 

26. He was never to see his wife or children again. 

27. Its going to be a long time before we can reduce our prices. 

28. John is bound to be in the office. 

29. None of us can say what our future is to be.  （没人能说出什么我们未来的前景。）

30. He did not fail to keep his word. （他的确没有食言。）