57. In an age of plenty, we feel spiritually hungry.

61. Bill hit his car into a wall last night.

49. A lot of natural resources in the mountain area will be exploited and used.

38. He has a foreign friend who lives in the United States.

55. The more passions we have, the more happiness we are likely to experience.

25. I hope we can have some snow this winter.

1.As is known to all, China is the largest developing country in the world.

6.He didn't need to attend the meeting.

45. The traffic jams during morning and afternoon rush hours are a headache in big cities now.

66. If you decided to learn a new language, you would have to devote all your efforts to it.