21. Is it necessary to a                 the meeting?

22. The watch cost me 1,000 dollars. It's v                .

23. Helen didn't go to bed until 11:30 last night. She feels s                 now.

24. Obama is the l                 of America.

25. --- Why do you come here?

--- The p                 of my coming here is to see you.

26. The boy is full of e                 and never feels tired.

27. I can't e                 my feelings, because I am too happy.

28. The bed used to be in this p                . Now it isn't here.

29. The 2014 Sochi Winter Olympics is a v                 for world sport.

30. Who is more h                 at school? Are you both lazy?

31. My father is going to a                 the meeting in Shanghai next Monday.

32. Can you offer me some advice? They will be the most v                .

33. After lunch, the children are s                 so they go to bed.

34. He is the l                 of the group. We should listen to him.

35. He went to town with the p                 of buying a computer.

36. She is full of e                . She never feels tired.

37. We should e                 our thanks to others when they help us.

38. Microsoft has taken the leading p                 in the world.

39. Our teacher led our class to v                 in this football match.

40. He is really h                 with his study, so he always gets the best results.

41. Thanks for                 (出席) the charity show, ladies and gentlemen!

42. They should get          &