单项选择题

Questions 9 to 12 are based on the conversation you have just heard.

A. A more economical diesel fuel.
B. Characteristics of a new type of fuel.
C. Where a new energy source is located.
D. How to develop alternative energy sources.
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单项选择题
A. He’s studying for a test. B. He lost his notes. C. He missed the class. D. He’s doing research on alternative.
A. He’s studying for a test. B. He lost his notes.
C. He missed the class. D. He’s doing research on alternative.
单项选择题
A. They can invite guests to meals at a reduced price.B. They receive cards that allow them to be served first.C. They can help decide what will be on the menu.D. They pay less per meal than those who eat there only part of the time.
A. They can invite guests to meals at a reduced price.
B. They receive cards that allow them to be served first.
C. They can help decide what will be on the menu.
D. They pay less per meal than those who eat there only part of the time.
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