33. The People's Republic of China (PRC), founded on October 1, 1949, covers an area of 9.6 million square kilometers.

40. She likes to help any one who is in difficulty.

44. We should encourage him to have confidence in himself.

32. Do you think you can do it by yourself?

51. The students are encouraged to do more listening, reading and writing by their teacher.

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

23. I'm thinking about a visit to Paris.

63. He has taught English in this university ever since he moved to this city.

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

56. Each time history repeats itself, the prices goes up.