37. Why is space junk considered a problem?

Part Ⅰ Listening Comprehension ( 15 Points )Directions: This part is to test your listening ability. It consists of 3 sections.Section ADirections: This section is to test your ability to understand short dialogues.There are 5 recorded dialogues in it. After each dialogue, there is a recorded question. Both the dialogues and questions will be spoken only once. 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.1. 

65. 尽管互联网技术现在已经十分先进，但是在一些发展中国家互联网在普通用户中还远远没有普及。

16. Experiments of this kind ____ in both the U.S. and Europe well before the Second World War.

10.

38. Countries want future space tools to be able to fall back into the earth’s atmosphere so that ____.

47.The location of the exhibition is   47  .

22. Not until he retired from teaching three years ago ____ having a holiday abroad.

25. She was the only one of the girls in our class ____ accepted as a candidate for the president of our Students’ Union.

45. The author’s purpose of writing this passage is to ____.

( ) 15. The richer countries always raise the prices of their imports.

60. 回家的感觉真好，可以吃到妈妈亲手做的家乡菜。