( )15. Even if the one you are talking with is impolite, you should also respond to him or her for politeness.

( )13. Talking to strangers on the Internet is absolutely safe.

( )14. You can give your address, phone number and bank account to those you are talking with.

20. By the time the fire engines arrived, the house ____ to the ground.

Section BDirections: This section is to test your ability to understand short conversations. There are 2 recorded conversations in it. After each conversation, there are some recorded questions. Both the conversations and questions will be spoken two times. When you hear a question, you should decide on the correct answer from the 4 choices marked A, B, C and D given in your test paper. Then you should mark the corresponding letter on the Answer Sheet with a single line through the center.Conversation 16. 

59. 这次会议所讨论的内容仅限于议程上的项目。

32. She had to ____ her umbrella from the Lost Property Office.

64. 散步有益于健康，我相信这一点对年轻人尤其重要。

47.Prioritise your emails according to the sender, subject and ___47____.

7.

( )52. Learners can get credits by attending short courses.

60. 这门课程除了介绍计算机的一般知识外，还提供了实际操作的机会。