单项选择题

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage.
Older planes can stay safe for more than 25 years because of the following EXCEPT（）

A．new engines.
B．strong materials.
C．proper maintenance.
D．new interior.

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单项选择题

Sue Green seems to be more interested in John’s experience of（）

A． working in a paper factory.
B．working in a youth club.
C．looking after his brother and sister.
D．looking after his young friends.

单项选择题

It can be learned from the passage that（）

A．air journeys are quite often far from comfortable.
B．air travellers usually enjoy luxury during flight.
C．air travellers usually enjoy upgraded conditions.
D．airlines always provide good in-flight entertainment.

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage. Older planes can stay safe for more than 25 years because of the following EXCEPT（） 您的浏览器不支持 audio 元素。

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage.
Older planes can stay safe for more than 25 years because of the following EXCEPT（）