61. 让我们利用这次长假去香港旅游。

39. What online language programs have been introduced to attract the Internet users and help users make progress?

10.

16. It is impossible to finish the task ____.

32. Stressful environment leads to unhealthy behaviors such as poor eating habits, which ____ increase the risk of heart disease.

( )52. People had their votes through the Internet to elect new seven wonders.

60. 林肯之所以如此受尊敬是因为他也同样不是完人。

49. Volunteers are also needed in hospitals ______ children while their parents see a doctor.

Conversation 28. 

26. The number of the people, ____ we had expected, was a thousand.

9.

65. 众所周知，成功来自于勤奋，不努力则一事无成。