42. From the passage, we know in the U.S. ____.

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

37. Why is space junk considered a problem?

（  ）53. In addition to being a source of income, our jobs define who we are in the world.

43. Choose the right time order of the following events.a. The first Father’s Day was observed.b. Mother’s Day was proclaimed a day for national observance.c. Father’s Day became a day for national observance.d. The idea of honoring fathers was brought up.

20. The new stadium being built for the next Paralympic Games will be ____ the one that has been destroyed.

17. Leave your key with a neighbor ____ you lock yourself out one day.

60. 回家的感觉真好，可以吃到妈妈亲手做的家乡菜。

Section BDirections: This section is to test your ability to understand short conversation. 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.

46.The exhibition begins on   46   and lasts for 5 days. 

28. —Did you enjoy yourself last night?—It’s very nice of you. I highly appreciate ____ to the party.

Section CDirections: In this section you will hear a recorded short passage. After the passage, there are five statements. The passage will be spoken three times. You are required to decide whether the sentences are True or False. Mark A ( for TRUE ) if the statement agrees with the information given in the passage; mark B ( for FALSE ) if the statement contradicts the information given in the passage. Then you should mark the corresponding letter on the Answer Sheet with a single line through the center. Now the passage will begin.( ) 11. Two thirds of the countries of the world are very rich, and one third are very poor.